GMS81004 Datasheet, PDF (13/101 Pages) Hynix Semiconductor – 8-BIT SINGLE CHIP MICROCOMPUTERS

Chapter 1. Overview
1.4 Pin Function
PIN NAME
R00
R01
R02
R03
R04
R05
R06
R07
R10
R11/INT1
R12/INT2
R13
R14/EC
R15/T2
R16/T1
R17/T0
R20
R21
R22
R23
R24
R25
R26
R27
XIN
XOUT
REMOUT
INPUT/
INPUT
OUTPUT 20Pin 24Pin 28Pin 44Pin
I/O
6
8
8
11
I/O
7
9
9
15
I/O
8
10 10 16
I/O
9
11 11 19
I/O
12 14 18 27
I/O
13 15 19 30
I/O
14 16 20 31
I/O
15 17 21 32
I/O
2
4
4
5
I/O
1
3
3
4
I/O
-
2
2
3
I/O
-
1
1
2
I/O
-
24 28 44
I/O
-
23 27 43
I/O
20 22 26 42
I/O
19 21 25 41
I/O
10 12 12 20
I/O
-
-
13 21
I/O
-
-
14 22
I/O
-
-
15 24
I/O
-
-
16 25
I/O
-
-
-
13
I/O
-
-
-
14
I/O
-
-
-
36
I
5
7
7
10
O
4
6
6
9
O
18 20 24 38
RESET
I
17 19 23 37
TEST
VDD
VSS
VSS
I
16 18 22 33
P
3
5
5
8
P
11 13 17 26
P
-
-
-
35
Function
@ RESET @ STOP
- Each bit of the port can be
individually configured as an
input or an output by user
software
- Push-pull output
- CMOS input with pull-up resistor
(option)
- Can be programmable as Key
Scan Input
- Pull-ups are automatically
disabled at output mode
INPUT
State
of before
STOP
- CMOS input with pull-up resistor
(option)
- Push-pull output
- Can be programmable as Key
Scan Input or Open drain output
- Direct Driving of LED(N-TR)
- Pull-ups are disabled at output
mode
INPUT
State
of before
STOP
- CMOS input with pull-up resistor
(option)
- Push-pull output
- Direct Driving of LED(N-TR)
- Pull-ups are disabled at output
mode
INPUT
State
of before
STOP
- Oscillator Input
- Oscillator Output
- High Current Output
- Includes pull-up resistor
- Includes pull-up resistor
- Positive power supply
- Ground
Low
High
`L` output `L` Output
`L` level ^state
of before
STOP
1- 8