Hitachi H8S/2633 Hardware Manual page 1149

PF1
Legend
WDDRF : Write to PFDDR
WDRF : Write to PFDR
RDRF : Read PFDR
RPORF : Read port F
Figure C-11 (b) Port F Block Diagram (Pin PF1)
BUZZ output
BUZZ output
enable
Mode 4/5/6
Reset
R
Q D
PF1DDR
C
WDDRF
Reset
R
Q D
PF1DR
C
WDRF
Bus controller
BRLE output
Bus request
acknowledge output
RDRF
RPORF
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