SH7052 Datasheet, PDF (666/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

18.3.14 Port G IO Register (PGIOR)
Bit: 15
14
13
12
11
10
9
8
—
—
—
—
—
—
—
—
Initial value: 0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
Bit: 7
6
5
4
3
2
1
0
—
—
—
— PG3IOR PG2IOR PG1IOR PG0IOR
Initial value: 0
0
0
0
0
0
0
0
R/W: R
R
R
R
R/W R/W R/W R/W
The port G IO register (PGIOR) is a 16-bit readable/writable register that selects the input/output
direction of the 4 pins in port G. Bits PG3IOR to PG0IOR correspond to pins
PG3/IRQ3/ADTRG0 to PG0/PULS7/HRxD0/HRxD1.
When port G pins function as PG3 to PG0, a pin becomes an output when the corresponding bit in
PGIOR is set to 1, and an input when the bit is cleared to 0.
PGIOR is initialized to H'0000 by a power-on reset (excluding a WDT power-on reset), and in
hardware standby mode. It is not initialized in software standby mode or sleep mode.
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