Hitachi H8S/2646 Hardware Manual page 1135

Hitachi 16-bit single-chip microcomputer h8s/2646 series
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PF3
Legend
WDDRF
: Write to PFDDR
WDRF
: Write to PFDR
RDRF
: Read PFDR
RPORF
: Read port F
Figure C-12 (c) Port F Block Diagram (Pin PF3)
Q
PF3DDR
WDDRF
Q
Mode 4/5/6
Reset
R
D
C
Reset
R
D
PF3DR
C
WDRF
Bus controller
LWR output
RDRF
RPORF
ADTRG input
IRQ3 interrupt input
1103

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