GMS81C2112 Datasheet, PDF (15/107 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C2112/GMS81C2120
PIN NAME
VDD
VSS
RA (V_disp)
RESET
XIN
XOUT
R00 (INT0)
R01 (INT1)
R02 (EC0)
R03 (BUZO)
R04~R07
R20~R27
R30~R34
R53 (SCLK)
R54 (SIN)
R55 (SOUT)
R56 (PWM1O/T1O)
R57
R60~R67 (AN0~AN7)
AVDD
AVSS
VDD
VSS
In/Out
-
-
I(I)
I
I
O
I/O (I)
I/O (I)
I/O (I)
I/O (O)
I/O
I/O
I/O
I/O (I/O)
I/O (I)
I/O (O)
I/O (O)
Basic
Supply voltage
Circuit ground
1-bit high-voltage Input only port
Reset signal input
Oscillation input
Oscillation output
8-bit high-voltage I/O ports
8-bit high-voltage I/O ports
5-bit high-voltage I/O ports
5-bit high-voltage I/O ports
I/O
I/O (I)
-
-
-
-
8-bit general I/O ports
Supply voltage input pin for ADC
Ground level input pin for ADC
Supply voltage
Circuit ground
Function
Alternate
High-voltage input power supply pin
External interrupt 0 input
External interrupt 1 input
Timer/Counter 0 external input
Buzzer driving output
Serial clock source
Serial data input
Serial data output
PWM 1 pulse output /Timer/Counter 1 out-
put
Analog voltage input
Table 5-1 GMS81C2120 Port Function Description
JUNE. 2001 Ver 1.00
9