Port F - Renesas H8S/2319 series Hardware Manual

C.10

Port F

PF0
WDDRF:
WDRF:
RDRF:
RPORF:
CS25E:
PF0CS4S: Port F0 chip select 4 select
BRLE:
Modes 4 to 6
Write to PFDDR
Write to PFDR
Read PFDR
Read port F
CS25 enable
Bus release enable
Figure C-10(a) Port F Block Diagram (Pin PF0)
Reset
R
Q D
PF0DDR
C
Port
WDDRF
CS25E bit
PF0CS4S bit
Bus controller
Reset
BRLE bit
R
Q D
PF0DR
C
WDRF
Chip select
RDRF
RPORF
Bus request input
Interrupt controller
IRQ interrupt input
Rev. 5.00, 12/03, page 1065 of 1088