I/O Port (P00-P03; Configuration Of I/O Port - Epson E0C6001 Technical Manual

Configuration of I/O
port
Fig. 4.5.1

Configuration of I/O port

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (I/O Port)
4.5 I/O Port (P00–P03)
The E0C6001 Series have a 4-bit general-purpose I/O port.
Figure 4.5.1 shows the configuration of the I/O port. The
four bits of the I/O port P00–P03 can be set to either input
mode or output mode. The mode can be set by writing data
to the I/O control register (IOC).
Address
Address
Input
control
Register
I/O control
register
(IOC)
Pxx
Vss
I-31