SH7280 Datasheet, PDF (1340/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 24 I/O Ports
Table 24.8 Port D Data Register L (PBDRL) Read/Write Operations
• PDDRL bits 15 to 0
PDDRL
0
1
Pin Function
General input
Read
Pin state
Other than
general input
General output
Other than
general output
Pin state
PDDRL value
PDDRL value
Write
Can write to PDDRL, but it has no effect on pin
state.
Can write to PDDRL, but it has no effect on pin
state.
The value written is output from the pin.
Can write to PDDRL, but it has no effect on pin
state.
24.4.3 Port D Port Registers H and L (PDPRH and PDPRL)
PDPRH and PDPRL are 16-bit read-only registers, which always return the states of the pins
regardless of the PFC setting. In SH7243, Bits PD15PR to PD0PR correspond to pins PD15 to
PD0 respectively (description of multiplexed functions are abbreviated here). In SH7285, Bits
PD31PR to PD24PR, and PD22PR to PD0PR correspond to pins PD31 to PD24 and PD22 to PD0
respectively (description of multiplexed functions are abbreviated here). In SH7286, Bits PD31PR
to PD0PR correspond to pins PD31 to PD0 respectively (description of multiplexed functions are
abbreviated here).
• PDPRH (SH7243)
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 and cannot be
modified.
Rev. 1.00 Jun. 26, 2008 Page 1310 of 1692
REJ09B0393-0100