C.9 Port C Block Diagram; Port C Block Diagram - Hitachi H8S/2646 Hardware Manual

C.9

Port C Block Diagram

PCn
Figure C-9 Port C Block Diagram (Pins PC0 to PC7)
1098
*1
*2
Legend
Notes: *1 Output enable signal
WDDRA : Write to PCDDR
WDRA : Write to PCDR
WODRA : Write to PCODR
WPCRA : Write to PCPCR
RDRA : Read PCDR
RPORA : Read port A
RODRA : Read PCODR
RPCRA : Read PCPCR
n= 0 to 7
Reset
R
Q D
PCnPCR
C
WPCRC
RPCRC
Reset
R
Q D
PCnDDR
C
WDDRA
Reset
R
Q D
PCnDR
Mode 4/5
C
Mode 6
WDRA
Reset
R
Q D
PCnODR
C
WODRC
RODRC
RDRC
RPORC
*2 Open drain control signal