Datasheet

Rev.6.00 Oct.28.2004 page 989 of 1016
REJ09B0138-0600H
C.7 Port A Block Diagram
R
PAnPCR
C
QD
Reset
WPCRA
Reset
WDRA
R
C
QD
PA
n
RDRA
RODRA
RPORA
Internal data bus
Internal address bus
WDDRA:
WDRA:
WODRA:
WPCRA:
RDRA:
RPORA:
RODRA:
RPCRA:
n = 0 to 3
Write to PADDR
Write to PADR
Write to PAODR
Write to PAPCR
Read PADR
Read port A
Read PAODR
Read PAPCR
PAnDR
Reset
WDDRA
R
Mode
4/5
C
QD
PAnDDR
Reset
WODRA
RPCRA
R
C
QD
PAnODR
*
1
*
2
Mode 7
Mode 4/5/6
Notes: 1. Output enable signal
2. Open drain control signal
Legend:
Figure C-7 (a) Port A Block Diagram (Pins PA
0
to PA
3
)