SH7020 Datasheet, PDF (416/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

Bit: 15
14
13
12
11
10
9
8
Bit name: PA15 PA14 PA13 PA12 PA11 PA10 PA9 PA8
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
Bit name: PA7 PA6 PA5 PA4 PA3 PA2 PA1 PA0
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
14.3.2 Port A Control Registers (PACR1 and PACR2)
PACR1 and PACR2 are 16-bit read/write registers that select the functions of the sixteen
multiplexed pins of port A. PACR1 selects the function of the top eight bits of port A; PACR2
selects the function of the bottom eight bits of port A. PACR1 and PACR2 are initialized to
H'3302 and H'FF95 respectively by power-on resets but are not initialized for manual resets,
standby mode, or sleep mode.
PACR1:
Bit:
Bit name:
Initial value:
R/W:
15
PA15
MD1
0
R/W
14
PA15
MD0
0
R/W
13
PA14
MD1
1
R/W
12
PA14
MD0
1
R/W
11
PA13
MD1
0
R/W
10
PA13
MD0
0
R/W
9
PA12
MD1
1
R/W
8
PA12
MD0
1
R/W
Bit: 7
6
5
4
3
2
1
0
Bit name: PA11 PA11 PA10 PA10 PA9MD1 PA9MD0 — PA8MD
MD1 MD0 MD1 MD0
Initial value: 0
0
0
0
0
0
1
0
R/W: R/W R/W R/W R/W R/W R/W
—
R/W
• Bits 15 and 14 (PA15 mode (PA15MD1 and PA15MD0)): PA15MD1 and PA15MD0 select
the function of the PA15/IRQ3/DREQ1 pin.
RENESAS 402