Port A Control Registers (Pacr1 And Pacr2) - Hitachi SH7032 Hardware Manual

Bit:
Bit name:
Initial value:
R/W:
Bit:
Bit name:
Initial value:
R/W:
15.3.2

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 upper eight bits of port A; PACR2
selects the function of the lower eight bits of port A. PACR1 and PACR2 are initialized to H'3302
and H'FF95 respectively by a power-on reset but are not initialized by a manual reset, or in
standby mode or sleep mode.
PACR1:
Bit:
Bit name:
Initial value:
R/W:
Bit:
Bit name:
Initial value:
R/W:
• Bits 15 and 14 (PA15 Mode (PA15MD1 and PA15MD0)): PA15MD1 and PA15MD0 select
the function of the PA15/IRQ3/DREQ1 pin.
428
15 14
PA15 PA14 PA13
IOR IOR IOR
0 0
R/W R/W R/W
7 6
PA7 PA6 PA5
IOR IOR IOR
0 0
R/W R/W R/W
15 14
PA15 PA15 PA14
MD1 MD0 MD1
0 0
R/W R/W R/W
7 6
PA11 PA11 PA10
MD1 MD0 MD1
0 0
R/W R/W R/W
13 12 11
PA12 PA11
IOR IOR
0 0 0
R/W R/W
5 4 3
PA4 PA3
IOR IOR
0 0 0
R/W R/W
13 12 11
PA14 PA13
MD0 MD1
1 1 0
R/W R/W
5 4 3
PA10 PA9
MD0 MD1
0 0 0
R/W R/W
10 9
PA10 PA9 PA8
IOR IOR IOR
0 0
R/W R/W R/W
2 1
PA2 PA1 PA0
IOR IOR IOR
0 0
R/W R/W R/W
10 9
PA13 PA12 PA12
MD0 MD1 MD0
0 1
R/W R/W R/W
2 1
PA9 — PA8
MD0 MD
0 1
R/W — R/W
8
0
0
0
8
1
0
0