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EZ80F916005MODG

型号：

EZ80F916005MODG

品牌：

ZILOG[ ZILOG, INC. ]

页数：

20 页

PDF大小：

240 K

下载PDF手册
An  
Company  
eZ80F916005MODG  
eZ80F91 Mini Enet Module  
for eZ80AcclaimPlus! TM  
Product Specification  
PS027103-0810  
®
Copyright ©2010 by Zilog , Inc. All rights reserved.  
www.zilog.com  
DO NOT USE IN LIFE SUPPORT  
Warning:  
LIFE SUPPORT POLICY  
ZILOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE  
SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF  
THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.  
As used herein  
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b)  
support or sustain life and whose failure to perform when properly used in accordance with instructions for  
use provided in the labeling can be reasonably expected to result in a significant injury to the user. A  
critical component is any component in a life support device or system whose failure to perform can be  
reasonably expected to cause the failure of the life support device or system or to affect its safety or  
effectiveness.  
Document Disclaimer  
©2010 by Zilog, Inc. All rights reserved. Information in this publication concerning the devices,  
applications, or technology described is intended to suggest possible uses and may be superseded. ZILOG,  
INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY  
OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT.  
ZILOG ALSO DOES NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY  
INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR  
TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE.The information contained within this  
document has been verified according to the general principles of electrical and mechanical engineering.  
Z80, eZ80, and eZ80AcclaimPlus! are trademarks or registered trademarks of Zilog, Inc. All other product  
or service names are the property of their respective owners.  
PS027103-0810  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
iii  
Revision History  
Each instance in Revision History reflects a change to this document from its previous  
revision. For more details, refer to the corresponding pages and appropriate links in the  
table below.  
Page  
Date  
Revision Level Description  
Number  
August 2010 03  
August 2008 02  
Updated paragraph.  
14  
Updated Figure 4  
12  
Updated Symbols for Pin Nos. 5  
9, 28, and 34 in Table 1  
Updated Symbol for Pin No.  
21 in Table 2  
8
July 2007  
01  
Original issue  
All  
PS027103-0810  
Revision History  
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
iv  
Table of Contents  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™ . . . . . . . . . . . . . . . . . . . 1  
Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
eZ80AcclaimPlus!™ Connectivity ASSP Features . . . . . . . . . . . . . . . . . . . . . . . 2  
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3  
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Mini Module Connector J1 – Peripheral Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Mini Module Connector J2 – I/O Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7  
Onboard Component Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Peripheral Bus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Ethernet PHY and RJ45 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Ethernet LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
5 MHz Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
IrDA Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Serial Interface Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16  
PS027103-0810  
Table of Contents  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
1
eZ80F91 Mini Enet Module for  
™
eZ80AcclaimPlus!  
Zilog’s eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™ family is a compact, high-  
performance Ethernet module specially designed for the rapid development and deploy-  
ment of embedded systems requiring remote control and Internet/Intranet connectivity.  
This expandable module is powered by the eZ80F91–Zilog’s latest Ethernet controller,  
featuring a power-efficient, high-speed, optimized pipeline architecture. This Application  
Specific Standard Product (ASSP) is a member of Zilog’s new eZ80AcclaimPlus! family  
products.  
The eZ80F91 is a high-speed plus single-cycle instruction-fetch device, which can operate  
with a clock speed of 50 MHz. It can operate in Z80®–compatible addressing mode  
(64 KB) or full 24-bit addressing mode (16 MB).  
The rich peripheral set of the eZ80F91 Mini Enet Module makes it suitable for a variety of  
applications, including industrial control, IrDA connectivity, communication, security,  
automation, point-of-sale terminals, and embedded networking applications.  
Module Features  
The module features include:  
•
Factory-default 5 MHz crystal oscillator input, 50 MHz maximum operating speed via  
PLL  
•
•
•
•
•
•
•
10/100 BaseT Ethernet PHY with RJ45 connector  
128 KB external high-speed SRAM  
256 KB on-chip Flash memory  
8 KB on-chip SRAM  
Real-Time Clock (RTC) support  
I/O connector provides 32 general-purpose 5 V-tolerant I/O pinouts  
On-board connector provides I/O bus for external peripheral connections (IRQ, CS, 24 ad-  
dress, 8 data)  
•
•
•
•
Connection to the eZ80AcclaimPlus! Development Platform via two 56-pin mini-headers  
Small footprint 50 mm x 47.5 mm  
3.3 V power supply  
Standard operating temperature range: 0 ºC to +70 ºC  
PS027103-0810  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™  
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
2
eZ80AcclaimPlus!™ Connectivity ASSP Features  
The features of eZ80F91 include:  
•
Built-in embedded 256 KB of Flash memory and 16 KB SRAM (8 KB user and 8 KB  
Ethernet)  
•
•
•
Single-cycle instruction fetch, high-performance, pipelined eZ80® CPU core  
10/100 Mbps Ethernet MAC with 8 KB frame buffer  
Low power features including SLEEP mode, HALT mode, and selective peripheral pow-  
er-down control  
•
•
•
•
•
•
Two UARTs with independent baud rate generators and support for 9-bit operation  
SPI with independent clock generator  
I2C with independent clock generator  
Infrared Data Association (IrDA)-compliant infrared encoder/decoder  
DMA-like eZ80 instructions for efficient block data transfer  
External interface with 4 chip selects, individual wait state generators, and an external  
WAIT input pin—supports Intel- and Motorola-style buses  
•
•
Flexible-priority vectored interrupts (both internal and external) and interrupt controller  
Real-time clock with on-chip 32 kHz oscillator, selectable 50/60 Hz input, and separate  
VDD pin for battery backup  
•
•
•
•
•
•
•
Four 16-bit Counter/Timers with prescalers and direct input/output drive  
Watchdog Timer  
32 bits of general-purpose input/output (GPIO)  
JTAG and ZDI debug interfaces  
144-pin BGA package  
3.0 V–3.6 V supply voltage with 5 V tolerant inputs  
Standard operating temperature range: 0 ºC to +70 ºC  
PS027103-0810  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™  
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
3
Block Diagram  
Figure 1 displays the block diagram of eZ80F91 Mini Enet Module for  
eZ80AcclaimPlus!™.  
128KB SRAM  
System Bus consists of 24 bits  
of address, 8 bits of data, 32  
bits of GPIO and control  
signals.  
10/100 Ethernet PHY  
MII  
eZ80F91  
SIR IrDA  
(not installed)  
56-Pin Connector J1  
56-Pin Connector J2  
Figure 1. eZ80F91 Mini Enet Module for eZ80AcclaimPlus! Block Diagram  
PS027103-0810  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™  
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
4
Pin Description  
Mini Module Connector J1 – Peripheral Bus  
Figure 2 displays the pin layout of the 56-pin Peripheral Bus Connector (J1) of the  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™. The eZ80F91 Mini Enet Module is  
designed to connect to end-user applications via connectors J1 and J2, where the entire  
system bus and I/O port signals are available. The module is also compatible with Zilog’s  
eZ80F91 Modular Development System (eZ80F910200KITG). Table 1 lists the pins and  
their functions.  
J1  
VCC_33V  
A0  
VCC_33V  
2
4
1
A6  
3
A2  
A7  
6
5
A1  
A3  
A8  
8
7
A10  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
46  
48  
50  
52  
54  
56  
9
G N D  
D5  
G N D  
-RD  
D1  
D0  
A17  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
41  
43  
45  
47  
49  
51  
53  
55  
D4  
D2  
D6  
G N D  
G N D  
A18  
A20  
A22  
A19  
A21  
A23  
-CS3  
-CS0  
VCC_33V  
VCC_33V  
-F91_WE  
-CS2  
RTC_VDD  
D3  
G N D  
G N D  
-HALT_SLP  
D7  
A13  
- W R  
A11  
A12  
A9  
G N D  
A14  
G N D  
A5  
A16  
A4  
A15  
G N D  
G N D  
V C C _ S R A M  
V C C _ S R A M  
Figure 2. eZ80F91 Mini Enet Module Peripheral Bus Mini Connector Pin Configuration—J1  
PS027103-0810  
Pin Description  
 
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
5
All signals with an overline are active Low. For example, B/W, for which WORD  
is active Low, and B/W, for which BYTE is active Low.  
Note:  
Table 1. eZ80Acclaim! Development Platform Peripheral Bus Connector J1  
1,2  
Identification  
Active  
Pin No Symbol Signal Direction Level  
eZ80F91 Signal  
Yes  
Note  
3
A6  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Output  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
Low  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
Low  
Low  
Low  
4
A0  
Yes  
5
A7  
Yes  
6
A2  
Yes  
7
A8  
Yes  
8
A1  
Yes  
9
A10  
A3  
Yes  
10  
13  
14  
15  
16  
17  
18  
19  
20  
23  
24  
25  
26  
27  
28  
29  
33  
Yes  
RD  
D5  
Yes  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Output  
Yes  
D1  
Yes  
D4  
Yes  
D0  
Yes  
D2  
Yes  
A17  
D6  
Yes  
Yes  
A19  
A18  
A21  
A20  
A23  
A22  
CS3  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Output  
Yes  
F91_WE Input  
No  
Jumper  
on  
board  
PS027103-0810  
Pin Description  
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
6
Table 1. eZ80Acclaim! Development Platform Peripheral Bus Connector J1  
1,2  
Identification (Continued)  
Active  
Pin No Symbol Signal Direction Level  
eZ80F91 Signal  
Note  
34  
35  
36  
39  
40  
CS2  
D3  
Output  
Low  
n/a  
Yes  
Yes  
Yes  
Yes  
Yes  
Bidirectional  
Input  
RTC_V  
D7  
n/a  
DD  
Bidirectional  
n/a  
HALT_SL Output  
P
Low  
41  
A13  
WR  
A12  
A11  
A14  
A9  
Bidirectional  
n/a  
Low  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
42  
Ouput  
43  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
44  
45  
46  
49  
A16  
A5  
50  
51  
A15  
A4  
52  
Notes  
1. For the sake of simplicity in describing the interface, Power and Ground nets are omitted  
from this table. The entire interface is represented in the eZ80F91 Mini Enet Module  
schematics (see Figure 5 on page 14 and Figure 6 on page 15).  
2. Additional note: external capacitive loads on RD, WR, IORQ, MREQ, D0–D7 and A0–A23  
®
should be below 10 pF to satisfy the timing requirements for the eZ80 CPU. All unused  
inputs should be pulled to either V  
or GND, depending on their inactive levels to  
DD  
reduce power consumption and to reduce noise sensitivity. To prevent EMI, the EZ80CLK  
output can be deactivated via software in the eZ80F91’s Peripheral Power-Down  
Register.  
PS027103-0810  
Pin Description  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
7
Mini Module Connector J2 – I/O Ports  
Figure 3 displays the pin layout of the 56-pin I/O Connector (J2) of the eZ80F91 Mini  
Enet Module for eZ80AcclaimPlus!™. The eZ80F91 Mini Enet Module is designed to  
connect to end-user applications via connectors J1 and J2, where the entire system bus and  
I/O port signals are available. The module is also compatible with eZ80F91 Modular  
Development System (eZ80F910200KITG). Table 2 lists the pins and their functions.  
J2  
PA4  
PA5  
PA0  
PA1  
PA3  
2
4
1
PA7  
3
PB5  
PB6  
6
5
8
7
EZ80CLK  
VCC_33V  
PB1  
10  
12  
14  
16  
18  
20  
22  
24  
26  
28  
30  
32  
34  
36  
38  
40  
42  
44  
46  
48  
50  
52  
54  
56  
9
PB7  
PB3  
PC7  
PA2  
G N D  
PB0  
PC5  
PC1  
PC0  
G N D  
11  
13  
15  
17  
19  
21  
23  
25  
27  
29  
31  
33  
35  
37  
39  
41  
43  
45  
47  
49  
51  
53  
55  
PC4  
PA6  
PB4  
G N D  
PB2  
PC6  
PC3  
PC2  
G N D  
TMS  
PD7  
PD6  
PD5  
PD3  
PD4  
TRIGOUT  
G N D  
-TRSTN  
G N D  
PD1  
PD0  
TCK  
TDI  
PD2  
TDO  
G N D  
G N D  
-DIS_IRDA  
IICSCL  
IICSDA  
-NMI  
-WAIT  
-RST  
VCC_33V  
VCC_33V  
Figure 3. eZ80F91 Mini Enet Module I/O Mini Module Connector Pin Configuration—J2  
PS027103-0810  
Pin Description  
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
8
Table 2. eZ80AcclaimPlus!™ Development Platform I/O Mini-Module Connector J2  
1
Identification  
2
Pin No Symbol  
Signal Direction Active Level eZ80F91 Signal  
1
PA3  
PA4  
PA7  
PA5  
PB5  
PA0  
PB6  
PA1  
EZ80CLK  
PB1  
PB7  
PC4  
PB3  
PA6  
PC7  
PB4  
PA2  
PB2  
PB0  
PC6  
PC5  
PC3  
PC1  
PC2  
PC0  
TMS  
PD7  
PD6  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Output  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
2
3
4
5
6
7
8
10  
11  
12  
13  
14  
15  
16  
17  
18  
21  
22  
23  
24  
25  
26  
27  
28  
31  
32  
33  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Input  
Bidirectional  
Bidirectional  
PS027103-0810  
Pin Description  
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
9
Table 2. eZ80AcclaimPlus!™ Development Platform I/O Mini-Module Connector J2  
1
Identification (Continued)  
2
Pin No Symbol  
Signal Direction Active Level eZ80F91 Signal  
34  
35  
36  
37  
38  
41  
42  
43  
44  
45  
46  
49  
50  
51  
52  
53  
54  
Notes  
PD5  
Bidirectional  
Bidirectional  
Bidirectional  
Input  
n/a  
n/a  
n/a  
Low  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
n/a  
Low  
n/a  
Low  
n/a  
Low  
Low  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
No  
PD3  
PD4  
TRSTN  
TRIGOUT  
TCK  
Output  
Input  
PD1  
Bidirectional  
Bidirectional  
Bidirectional  
Bidirectional  
Output  
TDI  
PD0  
PD2  
TDO  
DIS_IRDA Input  
IICSCL  
WAIT  
IICSDA  
RST  
I/O  
Yes  
Yes  
Yes  
Yes  
Yes  
Input  
I/O  
I/O  
NMI  
Input  
1. For the sake of simplicity in describing the interface, Power and Ground nets are  
omitted from this table. The entire interface is represented in the eZ80F91 Mini  
Ened Module schematics (see Figure 5 on page 14 and Figure 6 on page 15).  
2. The Power and Ground nets are connected directly to the eZ80F91 device.  
PS027103-0810  
Pin Description  
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
10  
Onboard Component Description  
I/O Connector  
The I/O connector features 32 general-purpose 3.3V CMOS I/O pins that can be used as  
outputs or inputs interfacing to external logic. All I/Os are 5V tolerant. Some of the GPIO  
pins support dual mode functions (SPI, Timer I/O, UARTs, and bit I/O with edge- or level-  
triggered interrupt functions on each pin). For more information on eZ80F91 dual modes,  
refer to eZ80AcclaimPlus! Connectivity ASSP eZ80F91 ASSP Product Specification  
(PS0270).  
Peripheral Bus Connector  
The peripheral bus connector features 24 pins that provide access to the eZ80F91 Mini  
Enet Module address bus and 8 pins that provide access to the module data bus. For more  
information on eZ80F91 address and data buses, refer to eZ80AcclaimPlus! Connectivity  
ASSP eZ80F91 ASSP Product Specification (PS0270).  
Ethernet PHY and RJ45 Connector  
The eZ80F91 Mini Enet Module contains a Micrel KS8721BL 10/100 Ethernet PHY with  
Media Independent Interface (MII) and a HALO RJ45 with integrated magnetics and two  
LEDs (transformer and common-mode chokes).  
The eZ80F91 Mini Enet Module defaults to 10 Mbps, which works in either a 100 Mbps  
or a 10 Mbps network. Software can also configure the PHY for 100 Mbps or autosense.  
Ethernet LEDs  
The Ethernet connection is provided by the HALO RJ45 connector. It contains two green  
LEDs that are located next to each other on the eZ80F91 Mini Enet Module. When PHY is  
receiving data, the left LED is ON. When the PHY is transmitting data, the right LED is  
ON.  
5 MHz Clock  
The eZ80F91 Mini Enet Module contains a 5 MHz crystal oscillator (Y2) that is multi-  
plied by the phase-locked loop (PLL) in the eZ80F91 ASSP to create a 50 MHz system  
clock  
PS027103-0810  
Onboard Component Description  
 
 
 
 
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
11  
Memory  
The eZ80F91 ASSP contains 256 KB of internal Flash memory. Additional user memory  
can be accommodated via the system bus on connectors J1 and J2. To program the on-chip  
Flash memory, install jumper JP1 on the mini module (see Table 3).  
Table 3. Shunt JP1, eZ80F91 Mini Enet Module for eZ80AcclaimPlus!™  
Shunt  
Symbol Jumper Name Status  
Function  
Affected Device  
JP1  
F91_WE  
In (Default) On-chip Flash is enabled for  
writing to boot block.  
On-chip Flash  
Out  
On-chip Flash memory boot  
block is write-protected.  
On-chip Flash  
There is 128 KB of fast SRAM on the eZ80F91 Mini Enet Module for eZ80AcclaimPlus!.  
Access time is 12 ns, which requires one wait-state access. The eZ80F91 on-chip SRAM  
can be used with zero wait states.  
IrDA Transceiver  
The eZ80F91 Mini Enet Module is shipped without an IrDA transceiver installed.  
If you install an on-board transceiver, such as the Zilog ZHX1810, it is connected to PD0  
(TX), PD1 (RX), and PD2 (Shutdown, IR_SD). The IrDA transceiver is of the LED type  
870 nm Class 1.  
The IrDA transceiver is accessible via the IrDA controller attached to UART0 on the  
eZ80F91 device.  
To use the UART0 for console or to save power, the transceiver can be disabled by the  
software or by an off-board signal when using the proper jumper selection. The transceiver  
is disabled by setting PD2 (IR_SD) High or by pulling the DIS_IRDA pin on the I/O con-  
nector Low. The shutdown is used for power savings. To enable the IrDA transceiver,  
DIS_IRDA is left floating and PD2 is set to Low.  
Serial Interface Ports  
The eZ80F91 ASSP contains two UARTs with programmable baud rate generators.  
UART0 is connected to GPIO PD[0:7] on the I/O connector. UART1 is connected to  
GPIO PC[0:7] on the I/O connector.  
PS027103-0810  
Onboard Component Description  
 
 
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
12  
Do not connect an RS-232 interface without level shifters. There are no RS232-  
level shifters on the eZ80F91 Mini Enet Module.  
Note:  
Physical Dimensions  
The footprint of the eZ80F91 Mini Enet Module PCB is 2.00 inches by 1.90 inches. See  
Figure 4 for dimensions and top-layer silkscreen.  
MOUNTING  
HOLES  
MOUNTING  
HOLES  
Figure 4. Physical Dimensions of eZ80F91 Mini Enet Module  
PS027103-0810  
Onboard Component Description  
 
 
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
13  
Absolute Maximum Ratings  
Stresses greater than those listed in Table 4 can cause permanent damage to the device.  
These ratings are stress ratings only. Operation of the device at any condition outside those  
indicated in the operational sections of these specifications is not implied. Exposure to  
absolute maximum rating conditions for extended periods may affect device reliability.  
For improved reliability, unused inputs should be tied to one of the supply voltages (VDD  
or VSS).  
Table 4. Absolute Maximum Ratings  
Parameter  
Min  
0
Max  
+70  
+85  
90%  
3.6  
Units  
ºC  
Standard operating temperature  
Storage temperature  
–45  
25%  
—
ºC  
Operating Humidity (RH @ 50 ºC)  
Operating Voltage  
V
PS027103-0810  
Onboard Component Description  
 
 
TM  
eZ80F91 Mini Enet Module for the eZ80AcclaimPlus!  
Product Specification  
14  
Schematics  
Figure 5 and Figure 6 display the layout of the eZ80F91 Mini Enet Module for eZ80AcclaimPlus!. IrDA circuitry devices are not installed  
on the eZ80F91 Mini Enet Module for eZ80AcclaimPlus!. However, these devices appear in the following schematics for reference pur-  
poses. Please see “IrDA Transceiver” on page 11 for additional information.  
connector 1  
connector 2  
J2  
V C C _ 3 3 V  
U 1 B  
G N D  
- F 9 1 _ W P  
- F 9 1 _ W E  
3
5
J1  
- F 9 1 _ W P  
A [0..23  
D [0..7  
]
A [0:23  
D [0:7 ]  
]
V C C _ 3 3 V  
2
V C C _ 3 3 V  
A 6  
P A 4  
P A 5  
P A 0  
P A 1  
P A 3  
P A 7  
P B 5  
R 1  
1 0 K  
S N 7 4 L V C 2 G 0 4  
1
2
4
1
A 0  
A 2  
]
R 2  
4
6
8
3
3
A 7  
R 3  
4. 7K  
5
6
5
A 1  
A 3  
A 8  
A 1 0  
G N D  
-RD  
D 1  
D 0  
A 1 7  
G N D  
A 1 9  
A 2 1  
A 2 3  
-CS3  
V C C _ 3 3 V  
- F 9 1 _ W E  
D 3  
G N D  
D 7  
A 1 3  
P B 6  
-CS [0..3  
]
4. 7K  
7
8
7
-CS [0:3 ]  
E Z 8 0 C L K  
V C C _ 3 3 V  
P B 1  
P C 4  
P A 6  
P B 4  
1 0  
1 2  
1 4  
1 6  
1 8  
2 0  
2 2  
2 4  
2 6  
2 8  
3 0  
3 2  
3 4  
3 6  
3 8  
4 0  
4 2  
4 4  
4 6  
4 8  
5 0  
5 2  
5 4  
5 6  
9
1 0  
1 2  
1 4  
1 6  
1 8  
2 0  
2 2  
2 4  
2 6  
2 8  
3 0  
3 2  
3 4  
3 6  
3 8  
4 0  
4 2  
4 4  
4 6  
4 8  
5 0  
5 2  
5 4  
5 6  
9
G N D  
D 5  
P B 7  
P B 3  
P C 7  
P A 2  
G N D  
P B 0  
P C 5  
P C 1  
P C 0  
G N D  
H E A D E R  
J P 1  
-F91_WE  
2
V C C _ 3 3 v  
R 4  
1 1  
1 3  
1 5  
1 7  
1 9  
2 1  
2 3  
2 5  
2 7  
2 9  
3 1  
3 3  
3 5  
3 7  
3 9  
4 1  
4 3  
4 5  
4 7  
4 9  
5 1  
5 3  
5 5  
1 1  
1 3  
1 5  
1 7  
1 9  
2 1  
2 3  
2 5  
2 7  
2 9  
3 1  
3 3  
3 5  
3 7  
3 9  
4 1  
4 3  
4 5  
4 7  
4 9  
5 1  
5 3  
5 5  
IICSDA  
IICSCL  
IICSDA  
IICSCL  
IICSDA  
IICSCL  
D 4  
C 1  
D 2  
D 6  
G N D  
A 1 8  
A 2 0  
A 2 2  
-CS0  
V C C _ 3 3 V  
-CS2  
R T C _ V D D  
G N D  
-HALT_SLP  
- W R  
A 1 1  
A 9  
G N D  
-HALT_SLP  
R T C _ V D D  
e Z 8 0 C L K  
G N D  
P B 2  
- H A L T _ S L P  
P C 6  
R 5  
6 8 R  
3 3 0 n F  
U 2  
R T C _ V D D  
e Z 8 0 C L K  
PA [0:7 ]  
PB [0:7 ]  
PC [0:7 ]  
PD [0:7 ]  
-RST  
P C 3  
P C 2  
2 R 7  
G N D  
TMS  
P D 6  
P D 3  
5
1
2
4
3
6
V C C  
L E D A  
TXD  
S D  
PA [0..7  
PB [0..7  
PC [0..7  
PD [0..7  
-RST  
]
]
]
]
P D 7  
(MMA 0204)  
P D 5  
P D 4  
T R I G O U T  
G N D  
-TRSTN  
P D 0  
G N D  
T C K  
P D 1  
P D 0  
T D O  
G N D  
I R D A _ S D  
P D 1  
TDI  
A 1 2  
P D 2  
A 1 4  
R X D  
G N D  
G N D  
G N D  
A 5  
A 4  
-DIS_IRDA  
A 1 6  
IICSCL  
IICSDA  
-NMI  
V C C _ 3 3 V  
-RD  
- W R  
A 1 5  
-WAIT  
-RST  
V C C _ 3 3 V  
-RD  
- W R  
G N D  
V C C _ S R A M  
G N D  
Z H X 1 8 1 0  
V C C _ S R A M  
V C C _ 3 3 V  
R 6  
R 7  
1 0 K  
2. 2K  
H E A D E R 2 8 x 2  
H E A D E R 2 8 x 2  
-WAIT  
-NMI  
-WAIT  
-NMI  
U 3  
A 0  
D 5  
D 4  
U 1 C  
1
2
6
A 0  
I/O0  
A 2  
A 1  
A 3  
7
A 1  
I/O1  
G N D  
D 2  
D 6  
D 7  
D 3  
D 0  
D 1  
3
1 0  
6
2
A 2  
I/O2  
4
1 1  
A 3  
I/O3  
A 1 1  
1 3  
1 4  
1 5  
1 6  
1 7  
1 8  
1 9  
2 0  
2 1  
2 9  
3 0  
3 1  
3 2  
2 2  
A 4  
I/O4  
R 8  
A 9  
A 5  
A 4  
A 1 5  
A 1 6  
A 1 4  
A 1 2  
A 1 3  
A 1 0  
A 8  
S N 7 4 L V C 2 G 0 4  
2 3  
A 5  
I/O5  
R 9  
1 0 K  
2 6  
A 6  
I/O6  
1 0 K  
2 7  
A 7  
I/O7  
A 8  
A 9  
TDI  
T C K  
TDI  
T C K  
A 1 0  
A 1 1  
A 1 2  
A 1 3  
A 1 4  
A 1 5  
A 1 6  
T R I G O U T  
TMS  
T R I G O U T  
TMS  
T D O  
A 7  
A 6  
T D O  
-TRSTN  
V C C _ S R A M  
C 2  
2 4  
8
-TRSTN  
V C C  
V C C  
- W R  
-RD  
-CS1  
1 2  
2 8  
5
W E  
O E  
C S  
C 3  
0. 1uF  
0. 001uF  
2 5  
9
G N D  
G N D  
V C C _ 3 3 V  
V C C _ 3 3 V  
V C C _ 3 3 V  
IDT71V124S/SO  
R 1 1  
1 0 K  
V C C _ 3 3 V  
V C C _ 3 3 V  
G N D  
U 1 A  
U 4  
G N D  
-DIS_IRDA  
1
7
1
2
I R D A _ S D  
4
P D 2  
S N 7 4 L V C 2 G 0 4  
=
I R _ S D  
G N D  
S N 7 4 A H C 1 G 3 2  
G N D  
TM  
Figure 5. eZ80F91 Mini Enet Module for eZ80AcclaimPlus! Schematic Diagram, #1 of 2—Connectors and Miscellaneous  
PS027103-0810  
Schematics  
 
 
 
 
TM  
eZ80F91 Mini Enet Module for the eZ80AcclaimPlus!  
Product Specification  
15  
5
4
3
2
1
D[0:7]  
A[0:23]  
U 6  
C 5  
2 2 p F  
R 2 6  
D 0  
D 1  
D 2  
D 3  
D 4  
D 5  
D 6  
D 7  
A 0  
4. 7K  
L 2  
K 3  
J 4  
M 3  
L 3  
H 5  
L 4  
M 4  
A 1  
B 1  
B 2  
C 3  
D 4  
E 5  
D 2  
D 1  
D 3  
F 6  
E 1  
E 4  
F 1  
F 2  
F 3  
F 4  
G 1  
F 5  
H 1  
H 2  
G 4  
H 3  
J 1  
D 0  
D 1  
D 2  
D 3  
D 4  
D 5  
D 6  
D 7  
A 0  
A 1  
A 1  
V C C _ 3 3 V  
U 5  
A 2  
A 2  
A 3  
M D I 0  
-RST  
Y1  
1
2
4 8  
4 7  
4 6  
4 5  
4 4  
4 3  
4 2  
4 1  
4 0  
3 9  
3 8  
3 7  
3 6  
3 5  
3 4  
3 3  
3 2  
3 1  
3 0  
2 9  
2 8  
2 7  
2 6  
2 5  
A 3  
M D I O  
M D C  
R X D 3 / P H Y A D 1  
R X D 2 / P H Y A D 2  
R X D 1 / P H Y A D 3  
R X D 0 / P H Y A D 4  
V C C  
G N D  
R X D V / P C S _ L P B K  
R X C  
RXER/ISO  
G N D  
R S T  
A 4  
M D C  
V D D _ P L L  
A 4  
V D D P L L  
2 5 M H z  
A 5  
R X D 3  
R X D 2  
R X D 1  
R X D 0  
V C C _ 3 3 V  
2 2 p F  
3
A 5  
XI  
X O  
A 6  
G N D  
4
A 6  
A 7  
G N D  
G N D  
C 6  
5
A 7  
G N D  
A 8  
6
A 8  
G N D  
-WAIT  
A 9  
L 6  
M 7  
J 6  
7
-WAIT  
W A I T  
A 9  
V D D T X  
D
C
B
D
C
B
R 1 2  
A 1 0  
A 1 1  
A 1 2  
A 1 3  
A 1 4  
A 1 5  
A 1 6  
A 1 7  
A 1 8  
A 1 9  
A 2 0  
A 2 1  
A 2 2  
A 2 3  
G N D  
TX +  
TX-  
G N D  
R 1 3  
6. 81K 1%  
8
A 1 0  
A 1 1  
A 1 2  
A 1 3  
A 1 4  
A 1 5  
A 1 6  
A 1 7  
A 1 8  
A 1 9  
A 2 0  
A 2 1  
A 2 2  
A 2 3  
TX+  
V C C _ 3 3 V  
- B U S R E Q  
R X D V  
R X C L K  
R X E R  
V D D C  
2
9
B U S R E Q  
N M I  
TX-  
G N D  
F B 1  
F B 2  
1 0  
1 1  
1 2  
1 3  
1 4  
1 5  
1 6  
1 7  
1 8  
1 9  
2 0  
2 1  
2 2  
2 3  
2 4  
-NMI  
1 0 K  
1
2
1
-NMI  
V D D R C V  
G N D  
R E X T  
TMS  
T C K  
TDI  
V D D C  
G N D  
G N D  
C 7  
0. 1uF  
Ferrite Bead  
G N D  
C 9  
Ferrite Bead  
H 7  
L 9  
K 9  
L 1 0  
TM S  
T C K  
TDI  
T M S  
T C K  
TDI  
T R S T N  
V D D C  
T X E R  
G N D  
TX ER  
TX CLK  
TX EN  
TX D0  
TX D1  
TX D2  
TX D3  
C O L  
+
C 8  
+
C 1 0  
1 0 u F  
G N D  
1 0 u F  
0. 1uF  
T X C / R E F C L K  
T X E N  
F X S D / F X E N  
R X +  
RX+  
RX-  
-TRSTN  
-TRSTN  
TXD0  
RX-  
-RST  
K 6  
A 2  
-RST  
R E S E T  
W P  
TXD1  
V D D R X  
TXD2  
P D  
R 1 5  
- F 9 1 _ W P  
1 K  
- F 9 1 _ W P  
TXD3  
L E D 3 / N W A Y E N  
L E D 2 / D U P L E X  
L E D 1 / S P D 1 0 0 / n o F E F  
LED0/TEST  
INT/PHYADD0  
G 5  
COL/RMII  
CRS/RMII_BTB  
G N D  
C R S  
C O L  
C R S  
- S P E E D  
- L E D L N K  
D 8  
A 7  
D 6  
A 4  
C 4  
D 5  
B 4  
E 6  
C 5  
C 6  
M I I _ C R S  
M I I _ C O L  
TX D3  
G N D  
B 7  
C 7  
D 7  
A 6  
B 6  
E 7  
A 3  
B 3  
MII_TXD3  
MII_TXD2  
MII_TXD1  
MII_TXD0  
MII_TXEN  
MII_TXER  
M I I _ M D C  
M I I _ M D I O  
R X E R  
R X D V  
R X D 3  
R X D 2  
R X D 1  
R X D 0  
R X C L K  
TX CLK  
TX D2  
TX D1  
TX D0  
TX EN  
TX ER  
M D C  
V C C _ 3 3 V  
M I I _ R X E R  
M I I _ R X D V  
MII_RXD3  
MII_RXD2  
MII_RXD1  
MII_RXD0  
M I I _ R X C L K  
MII_TXCLK  
V C C  
C 1 1  
R 1 6  
1 K  
G N D  
K S 8 7 2 1 B  
L
Make sure that power connections  
and nets VDD_PLL and VDDC have  
the shortest route possible  
V D D C  
INT  
0. 056uF  
R 1 8  
4 9 9  
M D I 0  
C 1 2  
2 7 0 p F  
C 1 3  
0. 1uF  
C 1 4  
C 1 5  
0. 1uF  
C 1 6  
0. 1uF  
+
C 1 9  
0. 1uF  
4 7 u F  
Header  
J P 2  
1
M 5  
L 5  
K 5  
J 5  
L 7  
J 3  
K 1  
K 2  
L 1  
I O R Q  
M R Q  
R D  
FILT_IN  
V C C _ 3 3 V  
J 1 0  
FILT_IN  
-RD  
- W R  
G N D  
-RD  
- W R  
W R  
Y2  
XIN  
C 1 7  
0. 1uF  
C 1 8  
0. 001uF  
+
C 2 0  
4 7 u F  
V C C _ 3 3 V  
H 1 1  
H 1 2  
-CS[0:3]  
XIN  
B U S A C K  
C S 0  
-CS0  
-CS1  
-CS2  
-CS3  
X O U T _O  
5 M Hz  
X O U T  
C S 1  
G N D  
C 2 1  
0. 1uF  
C S 2  
R 1 9  
3 3  
C S 3  
TX +  
TX-  
S C L  
S D A  
A 1 1  
A 1 2  
IICSCL  
IICSDA  
S C L  
S D A  
H 1 0  
A 5  
B 8  
C 1  
C 1 0  
E 2  
E 1 1  
G 2  
H 9  
J 2  
J 1 1  
K 4  
K 7  
M 1  
P L L _ V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
V D D  
RX+  
RX-  
R 2 7  
1 0 0 K  
P 1  
TX+  
TXCT  
TX-  
R 2 0  
P A 7  
49.9  
A 8  
F 7  
C 9  
A 9  
B 9  
E 8  
P A 7 _ P W M 3  
P A 6 _ P W M 2 _ E C 1  
P A 5 _ P W M 1 _ T O U T 1  
P A 4 _ P W M 0 _ T O U T 0  
P A 3 _ P W M 3 _ O C 3  
P A 2 _ P W M 2 _ O C 2  
P A 1 _ P W M 1 _ O C 1  
P A 0 _ P W M 0 _ O C 0  
P A 6  
P A 5  
P A 4  
P A 3  
P A 2  
P A 1  
P A 0  
V C C _ 3 3 V  
1
4
2
C 2 3  
1 8 p F  
C 2 2  
1 8 p F  
R 2 2  
R 2 5  
49.9  
R 2 1 49.9  
3
5
6
R X +  
R X C T  
RX-  
V C C _ 3 3 V  
R 2 3  
2 2 0  
R 2 4  
2 2 0  
B 1 0  
A 1 0  
PA[0:7]  
PB[0:7]  
PC[0:7]  
P B 7  
P B 6  
P B 5  
P B 4  
P B 3  
P B 2  
P B 1  
P B 0  
49.9  
C 2 4  
C 1 1  
C 1 2  
D 1 0  
E 9  
D 1 1  
F 8  
8
P B 7 _ M O S I  
P B 6 _ M I S O  
P B 5 _ I C B 3  
P B 4 _ I C A 2  
P B 3 _ S C K  
P B 2 _ S S  
P B 1 _ I C 1  
P B 0 _ I C 0 _ E C 0  
G N D  
V C C _ 3 3 V  
V C C _ 3 3 V  
0. 1uF  
9
1 0  
1 1  
1 2  
A N 1  
C T 1  
A N 2  
C T 2  
G 7  
B 5  
P L L _ V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
V S S  
D 1 2  
E 1 0  
B 1 2  
C 2  
- L E D L N K  
- S P E E D  
H F J 1 1 - 2 4 5 0 E  
P C 7  
P C 6  
P C 5  
P C 4  
P C 3  
P C 2  
P C 1  
P C 0  
C 8  
E 1 2  
G 8  
F 1 0  
F 1 1  
F 1 2  
G 9  
P C 7 _ R I 1  
P C 6 _ D C D 1  
P C 5 _ D S R 1  
P C 4 _ D T R 1  
P C 3 _ C T S 1  
P C 2 _ R T S 1  
P C 1 _ R X D 1  
P C 0 _ T X D 1  
D 9  
E 3  
F 9  
G 3  
G 6  
R T C _ V D D  
G 1 2  
H 4  
G 1 0  
G 1 1  
R T C _ V D D  
C 2 5  
0. 001uF  
C 2 6  
C 2 7  
C 2 8  
0. 001uF  
C 2 9  
0. 001uF  
C 3 0  
C 3 1  
C 3 2  
0. 001uF  
C 3 3  
0. 001uF  
G N D  
0. 001uF  
0. 001uF  
0. 001uF  
0. 001uF  
H 6  
J 1 2  
K 8  
M 2  
M 1 1  
P D 7  
P D 6  
P D 5  
P D 4  
P D 3  
P D 2  
P D 1  
P D 0  
H 8  
P D 7 _ R I 0  
P D 6 _ D C D 0  
K 1 1  
K 1 2  
J 9  
P D 5 _ D S R 0  
C 3 8  
0. 1uF  
C 3 9  
0. 1uF  
C 4 0  
C 4 1  
0. 1uF  
Y3  
P D 4 _ D T R 0  
0. 1uF  
K 1 0  
L 1 1  
L 1 2  
M 1 2  
P D 3 _ C T S 0  
P D 2 _ R T S 0  
V C C _ 3 3 V  
32. 768KHz  
J 7  
L 8  
M 8  
R T C _ V D D  
R T C _ X O U T  
RTC_XIN  
P D 1 _ R X D 0 _ I R R X D  
P D 0 _ T X D 0 _ I R T X D  
A
A
PD[0:7]  
-HALT_SL  
e Z 8 0 C L K  
V C C _ 3 3 V  
M 9  
B 1 1  
M 6  
M 1 0  
J 8  
P
H A L T _ S L P  
PHI  
I N S T R D  
T D O  
T R I G O U T  
V C C _ 3 3 V  
V C C _ 3 3 V  
C 5 1  
2 2 p F  
G N D  
C 5 2  
2 2 p F  
T D O  
T R I G O U T  
G N D  
G N D  
e Z 8 0 F 9 1 _ B G A  
G N D  
Wednesday, April 07, 2004  
Sheet  
2
of  
2
5
4
3
2
1
TM  
Figure 6. eZ80F91 Mini Enet Module for the eZ80AcclaimPlus! Schematic Diagram, #2 of 2—CPU and PHY  
PS027103-0810  
Schematics  
 
eZ80F91 Mini Enet Module for eZ80AcclaimPlus!TM  
Product Specification  
16  
Customer Support  
For answers to technical questions about the product, documentation, or any other issues  
with Zilog’s offerings, please visit Zilog’s Knowledge Base at http://www.zilog.com/kb.  
For any comments, detail technical questions, or reporting problems, please visit Zilog’s  
Technical Support at http://support.zilog.com.  
PS027103-0810  
Customer Support  
 
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