LPC47S457-NC SMSC [SMSC Corporation], LPC47S457-NC Datasheet - Page 221

• Manufacturer Part Number: LPC47S457-NC
• Description: Advanced I/O with X-Bus Interface
• Manufacturer: SMSC [SMSC Corporation]

SMSC LPC47S45x
IRQIN Routing
Register 2
Default = 0x00
on VTR POR
GP8_POR Select
Default = 0x00
on VTR POR
Power Supply
Control Register
(PS_CNTRL)
Default = 0x00
on Vbat POR
NAME
REG INDEX
(R/W)
(R/W)
(R/W)
0xF5
0xF8
F6h
Table 94 − Runtime Registers, Logical Device A
Bits[7:4] IRQIND routing. Selects which serial interrupt is used for
IRQIND. See bit mapping below.
Bits[3:0] IRQINC routing. Selects which serial interrupt is used for
IRQINC. See bit mapping below.
Bits[7:4] and bits[3:0] mapping:
Note: nIO_SMI must be disabled to use IRQ2 for an interrupt other
than SMI.
Power-on-Reset Selection register for GP8
This register is used to select the reset conditions for each bit of the
GP8 register and the corresponding GPIO configuration register
associated with that bit. The GP8 register is located in the Runtime
Register block and the GP80 to GP87 registers are located in Logical
Device A of the Configuration Block.
Reset Select:
0=VTR POR
1=VTR POR, PCI Reset, and VCC POR
Bit[0] Reset select for GP8 bit[0] and GP80 registers
Bit[1] Reset select for GP8 bit[1] and GP81 registers
Bit[2] Reset select for GP8 bit[2] and GP82 registers
Bit[3] Reset select for GP8 bit[3] and GP83 registers
Bit[4] Reset select for GP8 bit[4] and GP84 registers
Bit[5] Reset select for GP8 bit[5] and GP85 registers
Bit[6] Reset select for GP8 bit[6] and GP86 registers
Bit[7] Reset select for GP8 bit[7] and GP87 registers
Bit[0] AL_REM_EN
If AL_REM_EN is set and VTR=0 at the date/time that the alarm is
set for, then if the RTC_EN bit is set, the nPS_ON pin will go active
(low) and the machine will power-up as soon as VTR comes back.
This event is blocked when a power button override event occurs
(PWRBTNOR_STS bit set).
Bit[1] VTR_POR_OFF
If VTR_POR_OFF is set, the nPS_ON pin will go inactive (float) and
the main power (Vcc) will remain off when the VTR POR occurs. The
software must not set VTR_POR_OFF and VTR_POR_EN at the
DATASHEET
0x00= no interrupt selected
0x01= IRQ1
0x02= IRQ2/nIO_SMI
0x03= IRQ3
0x04= IRQ4
0x05= IRQ5
0x06= IRQ6
0x07= IRQ7
0x08= IRQ8
0x09= IRQ9
0x0A= IRQ10
0x0B= IRQ11
0x0C= IRQ12
0x0D= IRQ13
0x0E= IRQ14
0x0F= IRQ15
Page 221 of 259
DEFINITION
Rev. 06-01-06
STATE