HMS87C1304A Datasheet, PDF (31/70 Pages) Hynix Semiconductor – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

HYUNDAI MicroElectronics
HMS87C1304A/HMS87C1302A
PORT RBFUNC.4~0
Description
RB4/
PWM0/
COMP0
0
RB4 (Normal I/O Port)
1
PWM0 Output /
Timer1 Compare Output
RB3/INT1
0
RB3 (Normal I/O Port)
1
External Interrupt Input 1
RB2/INT0
0
RB2 (Normal I/O Port)
1
External Interrupt Input 0
RB1/BUZ
0
RB1 (Normal I/O Port)
1
Buzzer Output
RB0/AN0/
0¹
RB0 (Normal I/O Port)/
AN0 (ANSEL0=1)
AVref
1²
External Analog Reference
Voltage
1. When ANSEL0 = “0”, this port is defined for normal I/O port
y (RB0).
When ANSEL0 = “1” and ADS2~0 = “000”, this port
r _{can be used Analog Input Port (AN0).}
a ^{2. When this bit set to “1”, this port defined for AVref, so it can}
not be used Analog Input Port AN0 and Normal I/O
Prelimin ^{Port RB0.}
Jan. 2001
Preliminary
31