CHAPTER 4 PORT FUNCTIONS
User’s Manual U16896EJ2V0UD
100
(1) Port DL register (PDL)
0 is output
1 is output
PDLn
0
1
Control of output data (in output mode) (n = 0 to 7)
After reset: 00H (output latch) R/W Address: FFFFF004H
PDL7
PDL6
PDL5
PDL4
PDL3
PDL2
PDL1
PDL0
PDL
(2) Port DL mode register (PMDL)
PMDL7
Output mode
Input mode
PMDLn
0
1
Control of I/O mode (n = 0 to 7)
PMDL6
PMDL5
PMDL4
PMDL3
PMDL2
PMDL1
PMDL0
After reset: FFH R/W Address: FFFFF024H
PMDL
(3) Pull-up resistor option register DL (PUDL)
Not connected
Connected
PUDLn
0
1
Control of on-chip pull-up resistor connection (n = 0 to 7)
PUDL7
PUDL6
PUDL5
PUDL4
PUDL3
PUDL2
PUDL1
PUDL0
After reset: 00H R/W Address: FFFFFF44H
PUDL