GMS81604/08
LG Semicon
Descriptions
Primary Functions Secondary Functions
Pull-up/
Pull-down
STOP
Mode
Port Pin
I/O
RESET
V
V
-
Power supply to MCU
Ground
-
-
-
-
-
-
-
-
-
-
-
-
DD
SS
-
-
-
-
AV
-
I
Power supply for ADC
Test mode
-
-
-
DD
TEST
-
-
-
RESET
I
Reset the MCU
Oscillation input
Oscillation output
General I/O
Pull-up
Low
Last state
Low
X
X
I
-
-
-
-
Oscillation
Oscillation
IN
O
I/O
I/O
High
OUT
3)
R00~R07
R10~R17
Input
Last state
Last state
3)
General I/O
Input
R40/INT0
R41/INT1
R42/INT2
R43/INT3
R44/EC0
R45/EC2
R46/T1O
R47/T3O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
General I/O
External interrupt 0
External interrupt 1
External interrupt 2
External interrupt 3
External count input 0
External count input 2
Timer 1 output
"
"
"
"
"
"
"
3)
-
Input
Last state
Timer 3 output
1)
R50
R51
I/O
I/O
I/O
General I/O
"
"
-
-
Pull-up 2)
Pull-up 2)
-
1)
3)
Input
Last state
Last state
R55/BUZ
Buzzer driving output
R60/AN0
R61/AN1
R62/AN2
R63/AN3
R64/AN4
R65/AN5
R66/AN6
R67/AN7
I
I
I
General Input
"
"
"
Analog input 0
Analog input 1
Analog input 2
Analog input 3
Analog input 4
Analog input 5
Analog input 6
Analog input 7
3)
I
-
Input
I/O
I/O
I/O
I/O
General I/O
"
"
"
NOTES:
1. R50 and R51 are not physically served on 40 pin package.
2. When input mode is selected, pull-up is activated. In output mode, pull-up is de-activated.
3. In reset status, status of R50,R51 are weak high (Typ. impedance 50~100kW). Other pin impedance is very high(High-Z).
8
HYNIX [ HYNIX SEMICONDUCTOR ]
