pc87591l-n05 National Semiconductor Corporation, pc87591l-n05 Datasheet - Page 288
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pc87591l-n05
Manufacturer Part Number
pc87591l-n05
Description
Lpc Mobile Embedded Controller
Manufacturer
National Semiconductor Corporation
Datasheet
1.PC87591L-N05.pdf
(401 pages)
- Current page: 288 of 401
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5.0 Host Controller Interface Module
Wake-Up Signals Value Register (WK_SIGV)
This is a read-only register that returns the value of SMI and PWUREQ signal output and input to this module. This register
helps to identify the source of the wake-up request when multiple sources are enabled.
Location: Offset 06
Type:
Wake-Up ACPI State Register (WK_STATE)
This is a write-only register. It always returns 00
Location: Offset 07
Type:
Bit
Name
Bit
Name
Bit
7-6
Bit
0
1
2
3
4
5
0
1
SMI Output Value.
0: SMI output is low (asserted)
1: SMI output is high (de-asserted)
SMI Wake-Up Output Value.
0: SMI output of the wake-up module is low (asserted)
1: SMI output of the wake-up module is high (de-asserted)
PM1 SMI Output Value.
0: SMI output of the Power Management channel 1 is low (asserted)
1: SMI output of the Power Management channel 1 is high (de-asserted)
PM2 SMI Output Value.
0: SMI output of the Power Management channel 2 is low (asserted)
1: SMI output of the Power Management channel 2 is high (de-asserted)
PWUREQ Wake-Up Output Value.
0: PWUREQ output is low (asserted)
1: PWUREQ output is high (de-asserted)
PWUREQ Wake-Up Value.
0: PWUREQ output of the wake-up module is low (asserted)
1: PWUREQ output of the wake-up module is high (de-asserted)
Reserved.
Reserved.
S1 (Request to Change to S1 State). A write of 1 to this bit indicates to the core that the host requests to
change to S1 state. The S state and transition are interpreted, as specified in the ACPI standard for S state
change requests. This bit always reads back 0.
0: Not an S1 state request
1: S1 state setting request
RO
WO
16
7
16
7
Reserved
Reserved
6
6
PWUREQ of
Wake-Up
Value
S5
5
5
16
when read.
(Continued)
PWUREQ
Output
Value
Description
Description
288
S4
4
4
PM2 SMI
Output
Value
S3
3
3
PM1 SMI
Output
Value
S2
2
2
SMI Wake-
Up Output
Value
S1
1
1
SMI Output
Reserved
Value
0
0
Revision 1.2
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