1123
R
P75DDR
C
Q
D
Reset
Internal data bus
WDDR7
Reset
WDR7
R
P75DR
C
Q
D
P75
RDR7
RPOR7
8-bit timer
SCI module
Timer output enable
Serial clock output
enable
Serial clock input
enable
Serial clock
Timer output
Serial clock input
*
WDDR7
WDR7
RDR7
RPOR7
: Write to P7DDR
: Write to P7DR
: Read P7DR
: Read port 7
Legend
Note:
*
Priority order: Serial clock output > 8-bit timer output > DR output
Figure C-4 (e) Port 7 Block Diagram (Pin P75)