Hitachi SH7032 - Port a Control Registers (PACR1 and PACR2)

428
Bit: 15 14 13 12 11 10 9 8
Bit name: PA15
IOR
PA14
IOR
PA13
IOR
PA12
IOR
PA11
IOR
PA10
IOR
PA9
IOR
PA8
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
IOR
PA6
IOR
PA5
IOR
PA4
IOR
PA3
IOR
PA2
IOR
PA1
IOR
PA0
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
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: 15 14 13 12 11 10 9 8
Bit name: PA15
MD1
PA15
MD0
PA14
MD1
PA14
MD0
PA13
MD1
PA13
MD0
PA12
MD1
PA12
MD0
Initial value: 0 0 1 1 0 0 1 1
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: PA11
MD1
PA11
MD0
PA10
MD1
PA10
MD0
PA9
MD1
PA9
MD0
— PA8
MD
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.