GMS87C1102 Datasheet, PDF (36/80 Pages) Hynix Semiconductor – CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER

GMS87C1102 / GMS87C1202
HYUNDAI MicroElectronics
12.3 RC and RCIO registers
RC is an 4-bit bidirectional I/O port (address C4_H). Each
pin can be set individually as input and output through the
RCIO register (address C5_H).
RC Data Register
ADDRESS : C4H
RESET VALUE : Undefined
RC
-
-
-
-
-
- RC1 RC0
RC Direction Register
RCIO
---
ADDRESS : C5H
RESET VALUE : ------00
- - - RC1 RC0
INPUT / OUTPUT DATA
Figure 12-4 Registers of Port RC
DIRECTION SELECT
0 : INPUT PORT
1 : OUTPUT PORT
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Oct. 1999 ver 1.0