User Manual
UM015201-0603
I/O Connector
ZiLOG Development Platforms
eZ80
®
Sales Demonstration Platform
11
I/O Connector
Figure 6 illustrates the 60-pin I/O Connector, JP2. Table 3 describes the pins and
their functions. (Pin 50 on the eZ80L92 and eZ80F92 module connectors line up
with pin 60 on the eZ80
®
Sales Demonstration Platform board connectors.)
Figure 6. eZ80
®
Sales Demonstration Platform I/O Connector Pin Configuration
Table 3. I/O Connector Pin Identification
Function
Pull
Up/Down
Signal
Direction
Description
PA0 - PA7
Bidirectional
Not used for eZ80L92 and eZ80F92 modules.
PB0 - PB7
Bidirectional
These pins can be used for general-purpose I/O.
They can be individually programmed as input or out-
put and can also be used individually as interrupt
inputs. Each Port B pin, when programmed as output,
can be selected to be an open-drain or open-source
output.
PB0
-HALT_SLP
PA1
PD7
EZ80CLK
VCC_33V
PC1
PB1
PB3
GND
PD4
PA6
PD2
GND
PD0
PC6
PC0
-CS3
TRIGOUT
TMS
PA4
PD3
PA7
PC7
PB4
TDO
TDI
GND
-WAIT
PA2
PC4
VCC_33V
PA5
RTC_VDD
PC5
GND
-NMI
PC3
GND
PC2
PA3
IICSDA
PA0
PD5
IICSCL
VCC_33V
PD6
PD1
PB2
TCK
-RESET
-FLASHWE
PB7
GND
PB5
-DIS_IRDA
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
JP2
