SH7055S Datasheet, PDF (717/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

• Bit 3—Reserved: This bit is always read as 0. The write value should always be 0.
• Bit 2—PG1 Mode Bit (PG1MD): Selects the function of pin PG1/IRQ1.
Bit 2: PG1MD
0
1
Description
General input/output (PG1)
Interrupt request input (IRQ1)
(Initial value)
• Bits 1 and 0—PG0 Mode Bits 1 and 0 (PG0MD1, PG2MD0): These bits select the function of
pin PG0/PULS7/HRxD0/HRxD1.
Bit 1: PG0MD1
0
1
Bit 0: PG0MD0
0
1
0
1
Description
General input/output (PG0)
APC pulse output (PULS7)
HCAN receive data input (HRxD0)
HCAN receive data input (HRxD1)
(Initial value)
20.3.16 Port H IO Register (PHIOR)
Bit: 15
14
13
12
11
10
9
8
PH15 PH14 PH13 PH12 PH11 PH10 PH9 PH8
IOR
IOR
IOR
IOR
IOR
IOR
IOR
IOR
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W
Bit: 7
6
5
4
3
2
1
0
PH7 PH6 PH5 PH4 PH3 PH2 PH1 PH0
IOR
IOR
IOR
IOR
IOR
IOR
IOR
IOR
Initial value: 0
0
0
0
0
0
0
0
R/W: R/W R/W R/W R/W R/W R/W R/W R/W
The port H IO register (PHIOR) is a 16-bit readable/writable register that selects the input/output
direction of the 16 pins in port H. Bits PH15IOR to PH0IOR correspond to pins PH15/D15 to
PH0/D0. PHIOR is enabled when port H pins function as general input/output pins (PH15 to
PH0), and disabled otherwise.
When port H pins function as PH15 to PH0, a pin becomes an output when the corresponding bit
in PHIOR is set to 1, and an input when the bit is cleared to 0.
PHIOR 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.
Rev.2.0, 07/03, page 679 of 960