Port A Block Diagram - Renesas H8S/2633 Series Hardware Manual

C.18

Port A Block Diagram

PA0
1366
*
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-18 (a) Port A Block Diagram (Pin PA0)
Reset
R
Q
PA0PCR
C
WPCRA
RPCRA
Reset
R
Q
PA0DDR
C
WDDRA
Reset
R
Q
PA0DR
Modes 4 to 6
C
Address
enable
WDRA
Reset
R
Q
PA0ODR
C
WODRA
RODRA
RDRA
RPORA
Notes: *1 Output enable signal
*2 Open drain control signal
D
D
D
D