SH7144 Datasheet, PDF (596/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

PADRL:
Bit Bit Name Initial Value R/W
15 PA15DR 0
R/W
14 PA14DR 0
R/W
13 PA13DR 0
R/W
12 PA12DR 0
R/W
11 PA11DR 0
R/W
10 PA10DR 0
R/W
9
PA9DR
0
R/W
8
PA8DR
0
R/W
7
PA7DR
0
R/W
6
PA6DR
0
R/W
5
PA5DR
0
R/W
4
PA4DR
0
R/W
3
PA3DR
0
R/W
2
PA2DR
0
R/W
1
PA1DR
0
R/W
0
PA0DR
0
R/W
Description
See table 18.1
Table 18.1 Port A Data Register (PADR) Read/Write Operations
PADRH bits 7 to 0 and PADRL bits 15 to 0:
PAIORL, H Pin Function
0
General input
Other than
general input
1
General output
Other than
general output
Read
Pin state
Pin state
PADRH or L
value
PADRH or L
value
Write
Can write to PADRH and PADRL, but it has no
effect on pin state
Can write to PADRH and PADRL, but it has no
effect on pin state
Value written is output from pin
Can write to PADRH and PADRL, but it has no
effect on pin state
Rev. 2.0, 09/02, page 556 of 732