Zilog EZ80190 User Manual

An Company
eZ80190 Development Kit
User Manual
UM014108-0810
Copyright ©2010 by Zilog, Inc. All rights reserved.
www.zilog.com
eZ80190 Development Kit
Caution:

Safeguards

The following precautions must be observed when working with the devices described in this document.
Always use a grounding strap to prevent damage resulting from electrostatic discharge (ESD).
UM014108-0810

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Kit Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
eZ80190 Development Board Revision History . . . . . . . . . . . . . . . .2
eZ80Acclaim! Development Platform Overview . . . . . . . . . . . . . . . . . . .3
eZ80Acclaim! Development Platform. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
eZ80190 Module Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Application Module Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
I/O Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Embedded Modem Socket Interface . . . . . . . . . . . . . . . . . . . . . . . .28
eZ80Acclaim!
LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Push Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Console . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
I2C Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
eZ80190 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Operational Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48
Ethernet Media Access Controller . . . . . . . . . . . . . . . . . . . . . . . . . .49
eZ80190 Module Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
®
Development Platform Memory . . . . . . . . . . . . . .31
eZ80190 Development Kit
User Manual
iii
UM014108-0810 Table of Contents
eZ80190 Development Kit User Manual
iv
Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
I2C Bus Software Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Flash Loader Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Mounting the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Changing the Power Supply Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
ZPAK II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
ZDI Target Interface Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
JTAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Application Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
ZDS II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Cannot Download Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
No Output on Console Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
IrDA Port Not Working . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Difference Between EMAC and IP Address . . . . . . . . . . . . . . . . . . . . . 58
Schematic Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Appendix A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
General Array Logic Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Reset Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Media Access Control (MAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
®
eZ80
Development Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
eZ80190 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
U10 Address Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
U15 Address Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Table of Contents UM014108-0810

Introduction

The eZ80190 Development Kit provides a general-purpose platform for evaluating the capabilities and operation of ZiLOG’s eZ80190 micropro­cessor. The eZ8 0F9 1 Develo pmen t Kit features two primary boards: the eZ80Acclaim! arrangement provides a full development platform when using both boards. It can also provide a smaller-sized reference platform with the eZ80190 Module as a stand-alone development tool.

Kit Features

The key features of the eZ80190 Development Kit are:
eZ80190 Development Kit
User Manual
®
Development Platform and the eZ80190 Module. This
1
eZ80Acclaim!® Development Platform: – Up to 2 MB fast SRAM (12 ns access time) – Embedded Modem Socket with a U.S. Telephone Line Interface
2
C EEPROM
–I
2
–I
C Configuration Register – GPIO Port and Memory Headers – LEDs, including a 7 x 5 LED matrix – Jumpers – Two RS232 connectors—Console, Modem – 9 VDC Power Connector – RS485 connector – JTA G Debug Interface – ZiLOG Debug Interface (ZDI) – ZiLOG Developer Studio II and the eZ80
1. The eZ80Acclaim!® Development Platform’s RS485 and JTAG functions are not supported on the eZ80190 device.
UM014108-0810 Kit Features
1
1
®
C-Compiler
eZ80190 Development Kit User Manual
2
eZ80190 Module: – eZ80190 device operating at 50 MHz –1 MB Flash Memory – 512 KB SRAM – 10 BaseT Ethernet Interface – Real-Time Clock with Battery Back-Up
ZPAK II Debug Interface Tool
4-port 10 BaseT Ethernet hub
eZ80® Software and Documentation CD-ROM

Hardware Specifications

Table 1 lists the specifications of the eZ80Acclaim!® Development Plat­form.
Table 1. eZ80Acclaim!® Development Platform
Hardware Specifications
Operating Temperature: 20ºC ±5ºC
Operating Voltage: 9 VDC

eZ80190 Development Board Revision History

99C0858-001 Rev C or later:
10/20/03 - Updated layout and added reset fix. 05/30/06 - The following components are not populated on the board:
U11: Triac, SCR Phone Line D0-214 – U26 and U27: IC RS485, XCVR, Low PWR, 8-SOIC – C3 and C4: CAP 1000pF Ceramic Disc 1KV – D1 and D3: Diode LED Amber 0805 SMT
Introduction UM014108-0810
eZ80190 Development Kit
User Manual
T1: Inductor Ferrite Bead, 2x15 Turns – J1: Conn HDR/Pin 1x32 2mm socket – J5: Conn HDR/Pin 1x2 2mm socket – J9: Conn HDR/Pin 1x9 2mm socket – P4: Conn RJ14 Jack 6-Pos 4-CKT – P5: Conn 9-CKT Cir rt-angl PC Mount

eZ80Acclaim! Development Platform Overview

3
The purpose of the eZ80190 Development Kit is to provide the developer with a set of tools for evaluating the features of the eZ80
®
family of
devices, and to be able to develop a new application before building
®
application hardware. The eZ80Acclaim! designed to accept a number of application-specific modules and eZ80
Development Platform is
®
based add-on modules, including the eZ80190 Module, which features an Ethernet MAC, a Real-Time Clock, and the eZ80190 microprocessor with a fast Multiply-Accumulate unit.
When attached to the eZ80
®
Development Platform, the eZ80190 Module can operate in stand-alone mode with Flash memory, or interface via the ZPAK II debug interface tool to a host PC running ZiLOG Developer Stu­dio II Integrated Development Environment (ZDS IDE) software. If the user’s eZ80
®
application demands Internet connectivity and/or a network connection, the eZ80190 microprocessor can serve web pages over a TCP/IP network, allowing easy system monitoring and control, and effortless processor code updates.
The address bus, data bus, and all eZ80190 Module control signals are
®
buffered on the eZ80Acclaim!
Development Platform to provide suffi-
cient drive capability.
®
A block diagram of the eZ80Acclaim!
Development Platform and the
eZ80190 Module is shown in Figure 1.
-
UM014108-0810 eZ80Acclaim! Development Platform Overview
eZ80190 Development Kit
GPIO
RS232-0
(Console)
RS485
LED
(7x5 matrix)
Push-
buttons
I C
EEPROM
I C
Register
Data Bus
SRAM
(512 KB
up to 2 MB)
Application Module Headers
2
2
Address Bus
GPIO
and Address Decoder
RS232-1 (Modem)
Embedded
Modem
Peripheral Device Signals
eZ80
Ethermet
Module
Interface
¤
eZ80190
Address Bus
Flash
(1 MB)
EMAC
SRAM
(512 KB)
RTC with
Battery
Data Bus
eZ80190
Module
4
Figure 1. eZ80Acclaim!® Development Platform Block Diagram
with eZ80190 Module
Introduction UM014108-0810
eZ80190 Development Kit
User Manual
Figure 2 is a photographic representation of the eZ80Acclaim!® Develop­ment Platform segmented into its key blocks, as shown in the legend for the figure.
C
5
Key to blocks A–E:
A. Power and serial communications. B. eZ80190 Module interface. C. Debug interface.
Figure 2. The eZ80Acclaim!® Development Platform
A
B
D
E
D. Application module interfaces. E. General-Purpose Port and LED with address
decoder.
UM014108-0810 eZ80Acclaim! Development Platform Overview
eZ80190 Development Kit
A
A
C
B
D
6
Figure 3 is a photographic representation of the eZ80190 Module seg­mented into its key blocks, as shown in the legend for the figure.
Note: Key to blocks A–D.
A. eZ80190 Module interfaces. B. eZ80190 CPU. C. 10/100 BaseT Ethernet Interface D. IrDA transceiver.
Figure 3. The eZ80190 Module
®
Development Platform and the
starting on
The structures of the eZ80Acclaim! eZ80190 Module are illustrated in the Schematic Diagrams page 61.
Introduction UM014108-0810
eZ80190 Development Kit
User Manual

eZ80Acclaim! Development Platform

This section describes the eZ80Acclaim!® Development Platform hard­ware, its key components and its interfaces, including detailed program­mer interface information such as memory maps, register definitions, and interrupt usage.

Functional Description

The eZ80Acclaim!® Development Platform consists of seven major hard­ware blocks. These blocks, listed below, are diagrammed in Figure 4.
eZ80190 Module interface (2 male headers)
Power supply for the eZ80Acclaim!® Development Platform, the eZ80190 Module, and application modules
7
Application Module interface (2 female headers)
General-Purpose Port and LED matrix
RS232 serial communications ports
Embedded modem interface
I2C devices
UM014108-0810 Functional Description
eZ80190 Development Kit User Manual
8
Peripheral Device Signals
eZ80
Address Bus
Module
Interface
Data Bus
SRAM
(512 KB
RS232-0
(Console)
up to 2 MB)
RS232-1 (Modem)
Embedded
Modem
LED
(7x5 matrix)
Push-
GPIO
and Address Decoder
buttons
2
I C
EEPROM
2
I C
Register
Application Module Headers
Figure 4. Basic eZ80Acclaim!® Development Platform Block Diagram
eZ80Acclaim! Development Platform UM014108-0810

Physical Dimensions

The dimensions of the eZ80Acclaim!® Development Platform PCB is
177.8 mm x 182.9 mm. The overall height is 38.1 mm. See Figure 5.
43.2 mm
96.5 mm 55.9 mm
eZ80190 Development Kit
User Manual
9
175.3 mm
114.3 mm
157.5 mm
167.6 mm
5.1 mm
165.1 mm
5.1 mm
Figure 5. Physical Dimensions of the eZ80Acclaim!® Development Platform
UM014108-0810 Functional Description
eZ80190 Development Kit User Manual
10

Operational Description

The eZ80Acclaim!® Development Platform can accept any eZ80®-core­based modules, provided that the module interfaces correctly to the eZ80Acclaim! eZ80Acclaim! developer with a tool to evaluate the features of the eZ80190 device and to develop an application without building additional hardware.

eZ80190 Module Interface

®
Development Platform. The purpose of the
®
Development Platform is to provide the application
The eZ80190 Module interface provides easy an connection for the eZ80190 Module. This interface is designed to fit future eZ80
®
and user-developed modules using current eZ80
devices.
®
modules
The eZ80190 Module interface consists of two 50-pin receptacles, JP1 and JP2, which are described in the next pages.
Peripheral Bus Connector (JP1)
Figure 6 illustrates the pin layout of the Peripheral Bus Connector in the 50-pin header, located at position JP1 on the eZ80Acclaim!
®
Develop-
ment Platform. Table 2 describes the pins and their functions.
eZ80Acclaim! Development Platform UM014108-0810
eZ80190 Development Kit
A0
A2
A4
A6
A8
A10
CS2
D3
A17
A5
V3.3_EXT
GND_EXT
A7
A22
A1
A18 A1 6
GND_EXT
RD
D5
GND_EXT
A9
A23
CS1
A13
A11
D0
A19
D6
BUSACK
V3.3_EXT
CS0
INSTRD
A15
D1
A14
A3
D4
D7
IOREQ
A21
GND_EXT
MREQ
A12 A20
DIS_FLASH
BUSREQ
WR
D2
DIS_ETH
JP1
HEADER 25X2 IDC50
12 34 56 78 910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
User Manual
11
UM014108-0810 Operational Description
Figure 6. eZ80Acclaim!® Development Platform
Peripheral Bus Connector Pin Configuration—JP1
eZ80190 Development Kit User Manual
12
Table 2. eZ80Acclaim!® Development Platform
Peripheral Bus Connector Identification—JP1
1
eZ801900100ZCO
Pin # Symbol Signal Direction Active Level
Signal
1 A6 Bidirectional Yes
2 A0 Bidirectional Yes
3 A10 Bidirectional Yes
4 A3 Bidirectional Yes
5GND
6V
DD
7 A8 Bidirectional Yes
8 A7 Bidirectional Yes
9 A13 Bidirectional Yes
10 A9 Bidirectional Yes
11 A15 Bidirectional Yes
12 A14 Bidirectional Yes
13 A18 Bidirectional Yes
2
14 A16 Bidirectional Yes
15 A19 Bidirectional Yes
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ801900100ZCO device.
Additional note: external capacitive loads on RD be below 10 pF to satisfy the timing requirements for the eZ80 pulled to either V to reduce noise sensitivity. To prevent EMI, the EZ80CLK output can be deactivated via software in the eZ80F91’s Peripheral Power-Down Register.
or GND, depending on their inactive levels to reduce power consumption and
DD
, WR, IORQ, MREQ, D0–D7 and A0–A23 should
®
CPU. All unused inputs should be
on
eZ80Acclaim! Development Platform UM014108-0810
eZ80190 Development Kit
User Manual
13
Table 2. eZ80Acclaim!
Peripheral Bus Connector Identification—JP1
®
Development Platform
1
(Continued)
eZ801900100ZCO
Pin # Symbol Signal Direction Active Level
Signal
16 GND
17 A2 Bidirectional Yes
18 A1 Bidirectional Yes
19 A11 Bidirectional Yes
20 A12 Bidirectional Yes
21 A4 Bidirectional Yes
22 A20 Bidirectional Yes
23 A5 Bidirectional Yes
24 A17 Bidirectional Yes
25 DIS_ETH
26 EN_FLASH
Output Low No
Output Low No
27 A21 Bidirectional Yes
28 V
DD
29 A22 Bidirectional Yes
2
30 A23 Bidirectional Yes
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ801900100ZCO device.
Additional note: external capacitive loads on RD be below 10 pF to satisfy the timing requirements for the eZ80 pulled to either V to reduce noise sensitivity. To prevent EMI, the EZ80CLK output can be deactivated via software in the eZ80F91’s Peripheral Power-Down Register.
or GND, depending on their inactive levels to reduce power consumption and
DD
, WR, IORQ, MREQ, D0–D7 and A0–A23 should
®
CPU. All unused inputs should be
on
UM014108-0810 Operational Description
eZ80190 Development Kit User Manual
14
Table 2. eZ80Acclaim!
Peripheral Bus Connector Identification—JP1
®
Development Platform
1
(Continued)
eZ801900100ZCO
Pin # Symbol Signal Direction Active Level
Signal
31 CS0 Input Low Yes
32 CS1
33 CS2
Input Low Yes
Input Low Yes
34 D0 Bidirectional Yes
35 D1 Bidirectional Yes
36 D2 Bidirectional No
37 D3 Bidirectional Yes
38 D4 Bidirectional Yes
39 D5 Bidirectional Yes
40 GND
41 D7 Bidirectional Yes
42 D6 Bidirectional Yes
43 MREQ
Bidirectional Low Yes
2
44 IORQ
Bidirectional Low Yes
45 GND
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ801900100ZCO device.
Additional note: external capacitive loads on RD be below 10 pF to satisfy the timing requirements for the eZ80 pulled to either V to reduce noise sensitivity. To prevent EMI, the EZ80CLK output can be deactivated via software in the eZ80F91’s Peripheral Power-Down Register.
or GND, depending on their inactive levels to reduce power consumption and
DD
, WR, IORQ, MREQ, D0–D7 and A0–A23 should
®
CPU. All unused inputs should be
on
eZ80Acclaim! Development Platform UM014108-0810
eZ80190 Development Kit
®
Table 2. eZ80Acclaim!
Peripheral Bus Connector Identification—JP1
Development Platform
User Manual
1
(Continued)
15
Pin # Symbol Signal Direction Active Level
eZ801900100ZCO
Signal
2
46 RD Bidirectional Low Yes
47 WR
48 INSTRD
49 BUSACK
50 BUSREQ
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ801900100ZCO device.
Additional note: external capacitive loads on RD be below 10 pF to satisfy the timing requirements for the eZ80 pulled to either VDD or GND, depending on their inactive levels to 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.
Bidirectional Low Yes
Input Low Yes
Input Pull-Up 10 K¾; Low Yes
Output Pull-Up 10 K¾; Low Yes
, WR, IORQ, MREQ, D0–D7 and A0–A23 should
®
CPU. All unused inputs should be
on
I/O Connector (JP2)
Figure 7 illustrates the pin layout of the eZ80Acclaim!® Development Plat­form’s I/O Con nector in the 50-pin header. The I/O Connector is located at
®
position JP2 on the eZ80Acclaim!
Development Platform. Table 3
describes the pins and their functions.
UM014108-0810 Operational Description
eZ80190 Development Kit
PB1
PB3
PB5
PB7
PC1
PC3
PC5
PC7
GND_EXT
PD1
PD3
PD5
PD7
DIS_IRDA
CS3
EZ80CLK
V3.3_EXT
FLASHWE
NMI
WAIT GND_EXT
PB0
PB2
PB4
PB6
GND_EXT
PC2
PC4
RTC_VDD
PD0
PD2
PD4
PD6
GND_EXT
IICSCL IICSDA
TDITDO TRIGOUT
TCK TMS
RESET
GND_EXT
HALT_SLP
V3.3_EXT
PC6
PC0
JP2
HEADER 25X2 IDC50
12 34 56 78 910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
16
eZ80Acclaim! Development Platform UM014108-0810
Figure 7. eZ80Acclaim!® Development Platform
I/O Connector Pin Configuration—JP2
eZ80190 Development Kit
User Manual
17
Table 3. eZ80Acclaim!® Development Platform
I/O Connector Identification—JP2
1
Pin # Symbol Signal Direction Active Level eZ80F91 Signal
1 PB7 Bidirectional Yes
2 PB6 Bidirectional Yes
3 PB5 Bidirectional Yes
4 PB4 Bidirectional Yes
5 PB3 Bidirectional Yes
6 PB2 Bidirectional Yes
7 PB1 Bidirectional Yes
8 PB0 Bidirectional Yes
9GND
10 PC7 Bidirectional Yes
11 PC6 Bidirectional Yes
12 PC5 Bidirectional Yes
13 PC4 Bidirectional Yes
14 PC3 Bidirectional Yes
2
15 PC2 Bidirectional Yes
16 PC1 Bidirectional Yes
17 PC0 Bidirectional Yes
18 PD7 Bidirectional Yes
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ80F91 device.
on
UM014108-0810 Operational Description
eZ80190 Development Kit User Manual
18
Table 3. eZ80Acclaim!
I/O Connector Identification—JP2
®
Development Platform
1
(Continued)
Pin # Symbol Signal Direction Active Level eZ80F91 Signal
19 PD6 Bidirectional
20 GND
21 PD5 Bidirectional Yes
22 PD4 Bidirectional Yes
23 PD3 Bidirectional Yes
24 PD2 Bidirectional Yes
25 PD1 Bidirectional Yes
26 PD0 Bidirectional Yes
27 TDO Input Yes
28 TDI/ZDA Output Yes
29 GND
30 TRIGOUT Input High
31 TCK/ZCL Output Yes
2
32 TMS Output High Yes
33 RTC_V
DD
34 EZ80CLK Input Yes
35 SCL Bidirectional Yes
36 GND
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ80F91 device.
on
eZ80Acclaim! Development Platform UM014108-0810
eZ80190 Development Kit
User Manual
19
Table 3. eZ80Acclaim!
I/O Connector Identification—JP2
®
Development Platform
1
(Continued)
Pin # Symbol Signal Direction Active Level eZ80F91 Signal
37 SDA Bidirectional Yes
38 GND
39 FlashWE
Output Low No
40 GND
41 CS3
42 DIS_IrDA
43 RESET
44 WAIT
45 V
DD
Input Low Yes
Output Low No
Bidirectional Low Yes
Output Pull-Up 10 K¾; Low Yes
46 GND
47 HALT_SLP
48 NMI
49 V
DD
Input Low Yes
Output Low Yes
50 Reserved
2
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 eZ80190 Module Schematic Diagrams pages 66 through 73.
2. The Power and Ground nets are connected directly to the eZ80F91 device.
on
Almost all of the connectors’ signals are received directly from the CPU. Four input signals, in particular, offer options to the application developer by disabling certain functions of the eZ80190 Module.
These four inputs are:
UM014108-0810 Operational Description
eZ80190 Development Kit User Manual
20
These four signals are described below.
Disable Ethernet
Disable Ethernet (DIS_ETH) Enable Flash (EN_FLASH) Flash Write Enable (FlashWE) Disable IrDA (DIS_IrDA—not used)
When active Low, the DIS_ETH responding to CPU requests. As a result, additional input/output or mem­ory devices can be used in the CS3 the Ethernet signal is listed in Appendix A
Disable Flash
When active Low , the EN_FLASH the eZ80190 Module.
Flash Write Enable
When active Low, the FlashWE the Flash boot block of the eZ80190 Module.
Disable IrDA
This signal does not perform a function on the eZ80190 Module. UART0 is always used with the RS232 interface on the eZ80Acclaim! ment Platform.

Application Module Interface

An Application Module Interface is provided to allow the user to add an application-specific module to the ZiLOG’s Thermostat Application Module (not provided in the kit) is an example application-specific module that demonstrates an HVAC control system.
output signal disables the EMAC from
address space. The logic that disables
on page 74.
input signal disables the Flash chip on
input signal enables Write operations on
®
Develop-
eZ80Acclaim!® Development Platform.
eZ80Acclaim! Development Platform UM014108-0810
eZ80190 Development Kit
To design an application module, the user should be familiar with the architecture and features of the eZ80190 Module currently installed. Implementing an application module via the Application Module Interface requires that the eZ80190 Module also be mounted on the Development Platform, because it (the eZ80190 Module) contains the eZ80190 microprocessor. To mount an application module, use the two male connectors J6 and J8.
Connector J6 carries the GPIO signals, and connector J8 carries memory and control signals. T ables 4 and 5 list the signals and functions related to each of these jumpers by pin. Power and ground signals are omitted for the sake of simplicity.
Table 4. GPIO Port Connector J6*
Signal Pin # Function Direction Notes
SCL 5 I
SDA 7 I
2
C Clock Bidirectional
2
C Data Bidirectional
User Manual
21
eZ80Acclaim!®
MOD_DIS
MWAIT
EM_D0 15 GPIO, Bit 0 Bidirectional
CS3
EM_D[7:1] 21,23,25,
Note: *All of the signals are driven directly by the CPU.
UM014108-0810 Operational Description
9 Modem Disable Input If a shunt is installed between
pins 6 and 9, the modem function on the eZ80Acclaim! Development Platform is disabled.
13 WAIT signal for
the CPU
17 Chip Select 3 of
the CPU
Port A, Bit [7:1] Bidirectional 27,29,31, 33
Input This signal does not perform a
function on the eZ80190 Module.
Output This signal is also present on
the J8.
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eZ80190 Development Kit User Manual
22
Table 4. GPIO Port Connector J6* (Continued)
Signal Pin # Function Direction Notes
Reserved 35
PC[7:0] 39,41,43,
Port C, Bit [7:0] Bidirectional 45,47,49, 51,53
®
ID_[2:0] 6,8,10 eZ80Acclaim!
Output Development Platform ID
CON_DIS 12 Console Disable Input If a shunt is installed between
pins 12 and 14, the Console function on the eZ80Acclaim! Development Platform is disabled.
Reserved 16,18
PD[7:0] 22,24,26,
Port D, Bit[7:0] Bidirectional
28,30,32, 34,36
PB[7:0] 40,42,44,
Port B, Bit[7:0] Bidirectional
46,48,50, 52,54
Note: *All of the signals are driven directly by the CPU.
®
eZ80Acclaim! Development Platform UM014108-0810
eZ80190 Development Kit
User Manual
Table 5. CPU Bus Connector J8*
Signal Pin # Function Direction
A[0:7] 3–10 Address Bus, Low Byte Output
A[8:15] 13–20 Address Bus, High Byte Output
A[16:23] 23–30 Address Bus, Upper Byte Output
23
RD
RESET
BUSACK
NMI
D[0:7] 43–50 Data Bus Bidirectional
CS[0:3] 53–56 Chip Selects Output
MREQ
WR
INSTRD
BUSREQ
PHY 40 Clock output of the CPU Output
Note: *All of the signals except BUSACK and INSTRD are driven by low­voltage CMOS technology (LVC) drivers.
33 Read Signal Output
35 Push Button Reset Output
37 CPU Bus Acknowledge Signal Output
39 Nonmaskable Interrupt Input
57 Memory Request Output
34 Write Signal Output
36 Instruction Fetch Output
38 CPU Bus Request signal Input

I/O Functionality

The
eZ80Acclaim!® Development Platform provides additional functional-
ity, featuring general-purpose port, an LED matrix, a modem reset, and two user triggers. These functions are memory-mapped with an address decoder based on the Generic Array Logic GAL22lV10D (U15) device manu fac­tured by Lattice Semiconductor, and a bidirectional latch (U16). Addition­ally, U15 is used to decode addresses for access to the 7 x 5 LED matrix.
UM014108-0810 Operational Description
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