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

C.6

Port A Block Diagram

PA0
Legend
WDDRA
WDRA
WODRA
WPCRA
RDRA
RPORA
RODRA
RPCRA
1322
*
1
* 2
Notes: *1 Output enable signal
: Write to PADDR
: Write to PADR
: Write to PAODR
: Write to PAPCR
: Read PADR
: Read port A
: Read PAODR
: Read PAPCR
Figure C-6 (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
*2 Open drain control signal
D
D
D
D