CHAPTER 14 PORT FUNCTIONS
User’s Manual U14359EJ4V0UM
493
(c) Port CS function control register (PFCCS)
This register can be read/written in 8-bit or 1-bit units. Bits 7, 6, 4, 3, 1, and 0, however, are fixed to 0, so
writing 1 to these bits is ignored.
Caution When the port mode is specified by the port CS mode control register (PMCCS), the
PFCCS setting becomes invalid.
7
6
5
4
3
2
1
0
Address
After reset
PFCCS
0
0
PFCCS5
0
0
PFCCS2
0
0
FFFFF049H
00H
Bit position
Bit name
Function
5
PFCCS5
Port Function Control
Specifies operation mode of PCS5 pin in control mode.
0: CS5 output mode
1: IORD output mode
Note
2
PFCCS2
Port Function Control
Specifies operation mode of PCS2 pin in control mode.
0: CS2 output mode
1: IOWR output mode
Note
Note
To output the IORD and IOWR signals during access to the external I/O other than by a DMA flyby
transfer, the IOEN bit of the BCP register must be set.