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Zilog EZ80190 User Manual

Page 23

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eZ80190 Development Kit

User Manual

UM014108-0810

Operational

Description

19

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:

37

SDA

Bidirectional

Yes

38

GND

39

FlashWE

Output

Low

No

40

GND

41

CS3

Input

Low

Yes

42

DIS_IrDA

Output

Low

No

43

RESET

Bidirectional

Low

Yes

44

WAIT

Output

Pull-Up 10 K¾; Low

Yes

45

V

DD

46

GND

47

HALT_SLP

Input

Low

Yes

48

NMI

Output

Low

Yes

49

V

DD

50

Reserved

Table 3. eZ80Acclaim!

®

Development Platform

I/O Connector Identification—JP2

1

(Continued)

Pin #

Symbol

Signal Direction

Active Level

eZ80F91 Signal

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

on

pages 66 through 73.

2. The Power and Ground nets are connected directly to the eZ80F91 device.