SH7080_09 Datasheet, PDF (1256/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Section 22 I/O Ports
Table 22.8 Port D Data Register (PDDR) Read/Write Operations
• PDDRH Bits 15 to 0 and PDDRL Bits 15 to 0
PDIORH Pin Function Read
Write
0
General input Pin state
Can write to PDDRH or PDDRL, but it has no
effect on pin state
Other than
general input
Pin state
Can write to PDDRH or PDDRL, but it has no
effect on pin state
1
General output PDDRH or
Value written is output from pin
PDDRL value
Other than
PDDRH or
Can write to PDDRH or PDDRL, but it has no
general output PDDRL value effect on pin state
22.4.3 Port D Port Registers H and L (PDPRH and PDPRL)
The port D port registers H and L (PDPRH and PDPRL) are 16-bit read-only registers that always
return the states of the pins regardless of the PFC setting. Bits PD15PR to PD0PR correspond to
pins PD15 to PD0 (multiplexed functions omitted here) in the SH7083 and SH7084. Bits PD31PR
to PD0PR correspond to pins PD31 to PD0 (multiplexed functions omitted here) in the SH7085
and SH7086.
• PDPRH (SH7083, SH7084)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Initial
Bit
Bit Name Value R/W Description
15 to 0 ⎯
All 0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
Rev. 4.00 Dec. 15, 2009 Page 1196 of 1558
REJ09B0181-0400