
CHAPTER 14 PORT FUNCTIONS
User’s Manual U14359EJ4V0UM
468
(c) Port 0 function control register (PFC0)
This register can be read/written in 8-bit or 1-bit units. Bits 3 to 0, however, are fixed to 0, so writing 1 to
these bits is ignored.
Caution
When the port mode is specified by the port 0 mode control register (PMC0), the PFC0
setting becomes invalid.
7
6
5
4
3
2
1
0
Address
After reset
PFC0
PFC07
PFC06
PFC05
PFC04
0
0
0
0
FFFFF460H
00H
Bit position
Bit name
Function
7 to 4
PFC0n
(n = 7 to 4)
Port Function Control
Specifies operation mode of P0n pin in control mode.
0: External interrupt request (INTP103 to INTP100) input mode
1: DMA (DMARQ3 to DMARQ0) request input mode
Содержание V850E/MA1
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