Hitachi H8S/2633 Hardware Manual page 1139

C.6 Port A Block Diagram
PA0
*
1
* 2
Legend
WDDRA : Write to PADDR
WDRA : Write to PADR
WODRA : Write to PAODR
WPCRA : Write to PAPCR
RDRA : Read PADR
RPORA : Read port A
RODRA : Read PAODR
RPCRA : Read PAPCR
Figure C-6 (a) Port A Block Diagram (Pin PA0)
Mode4/5/6
Address
enable
Notes: 1. Output enable signal
2. Open drain control signal
Reset
R
Q D
PAnPCR
C
WPCRA
RPCRA
Reset
R
Q D
PAnDDR
C
WDDRA
Reset
R
Q D
PAnDR
C
WDRA
Reset
R
Q D
PAnODR
C
WODRA
RODRA
RDRA
RPORA
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