CHAPTER 14 PORT FUNCTIONS
User’s Manual U14359EJ4V0UM
491
(2) I/O mode/control mode setting
The port CS I/O mode setting is performed by the port CS mode register (PMCS), and the control mode
setting is performed by the port CS mode control register (PMCCS) and the port CS function control register
(PFCCS).
(a) Port CS mode register (PMCS)
This register can be read/written in 8-bit or 1-bit units.
7
6
5
4
3
2
1
0
Address
After reset
PMCS
PMCS7
PMCS6
PMCS5
PMCS4
PMCS3
PMCS2
PMCS1
PMCS0
FFFFF028H
FFH
Bit position
Bit name
Function
7 to 0
PMCSn
(n = 7 to 0)
Port Mode
Specifies input/output mode for PCSn pin.
0: Output mode (output buffer on)
1: Input mode (output buffer off)