8.10
Port 9
8.10.1
Overview
Port 9 is an 8-bit I/O port. Figure 8-9 shows its pin configuration.
P97/SEG40/CL1
P96/SEG39/CL2
P95/SEG38/DO
P94/SEG37/M
P93/SEG36
Port 9
P92/SEG35
P91/SEG34
P90/SEG33
Figure 8-9 Port 9 Pin Configuration
Register Configuration and Description
8.10.2
Table 8-26 shows the port 9 register configuration.
Table 8-26 Port 9 Registers
Name
Abbrev.
PDR9
R/W
R/W
R
Initial Value
H'00
Address
H'FFDC
H'FFEC
Port data register 9
Port control register 9
PCR9
H'00
167