Advanced I/O Controller with Motherboard GLUE Logic
Datasheet
Table 8.2 – Power Control Runtime Registers Description, LD_NUM Bit = 0
REG OFFSET
(Type)
NAME
PME_STS
DESCRIPTION
0x00
Bit[0] PME_Status
= 0 (default)
Default = 0x00
on VTR POR
(R/W)
= 1 Set when LPC47M182 would normally assert the
nIO_PME signal, independent of the state of the
PME_En bit.
Bit[7:1] Reserved
PME_Status is not affected by Vcc POR, SOFT RESET
or HARD RESET.
Writing a “1” to PME_Status will clear it and cause the
LPC47M182 to stop asserting nIO_PME, in enabled.
Writing a “0” to PME_Status has no effect.
Bits[7:0] Reserved – reads return 0
N/A
0x01 – 0x03
(R)
PME_EN
0x04
Bit[0] PME_En
= 0 nIO_PME signal assertion is disabled (default)
= 1 Enables LPC47M182 to assert nIO_PME signal
Bit[7:1] Reserved
Default = 0x00
on VTR POR
(R/W)
PME_En is not affected by Vcc POR, SOFT RESET or
HARD RESET
N/A
0x05 – 0x07
(R)
Bits[7:0] Reserved – reads return 0
PME_STS3
0x08
PME Wake Status Register 3
This register indicates the state of the individual PME
wake sources, independent of the individual source
enables or the PME_En bit.
Default = 0x00
on VTR POR
(R/W)
If the wake source has asserted a wake event, the
associated PME Wake Status bit will be a “1”.
Bit[0] GP20
Bit[1] GP21
Bit[2] GP22
Bit[3] GP23
Bits[7:4] Reserved
The PME Wake Status register is not affected by Vcc
POR, SOFT RESET or HARD RESET.
Writing a “1” to Bit[7:0] will clear it. Writing a “0” to any
bit in PME Wake Status Register has no effect.
PME Wake Status Register 2
PME_STS2
0x09
This register indicates the state of the individual PME
wake sources, independent of the individual source
enables or the PME_En bit.
Default = 0x00
on VTR POR
(R/W)
If the wake source has asserted a wake event, the
associated PME Wake Status bit will be a “1”.
Bit[0] GP10
Bit[1] GP11
Bit[2] GP12
Bit[3] GP13
Bit[4] GP14
Bit[5] GP15
Bit[6] GP16
Bit[7] GP17
The PME Wake Status register is not affected by Vcc
POR, SOFT RESET or HARD RESET.
Writing a “1” to Bit[7:0] will clear it. Writing a “0” to any
bit in PME Wake Status Register has no effect.
SMSC LPC47M182
155
Revision 1.8 SMSC/Non-SMSC Register Sets (02-24-05)
DATASHEET
SMSC [ SMSC CORPORATION ]
