Port C (Pc.0-Pc.3); Port C Configuration - Oki ML63611 User Manual

10.6 Port C (PC.0–PC.3)
The ML63611 has Port C, a 4-bit input/output port.

10.6.1 Port C Configuration

The circuit configuration for port C is shown in Figure 10-10.
PC.0–PC.3
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
V
DD
Output
port
control
V
SS
4
V
DD
Pull-up/
pull-down
control
V
SS
Figure 10-10 Input /Output Port (Port C) Configuration
Chapter 10 Ports (INPUT, I/O PORT)
PCD
PCDIR
PCCON0
PCCON1
PCMOD
4
3
10 – 19
OPTION B (D): 1.5 V (3.0 V), With regulator
ML63611 User's Manual
Data bus
4
3
TXC, RXC, TXD
(from serial port)
PC.0–PC.3
(to external interrupt 1
control circuit)
RXD, TXC, RXC
(to serial port circuits)
circuit for LCD bias