pc87591l National Semiconductor Corporation, pc87591l Datasheet - Page 110

• Manufacturer Part Number: pc87591l
• Description: Lpc Mobile Embedded Controllers
• Manufacturer: National Semiconductor Corporation

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Embedded Controller Modules
Edge Detection Register (WKEDG2)
Byte-wide read/write register that configures the trigger condition of the input signals WUI20 to WUI27. The functionality of
the register is identical to the WKEDG1 register described above.
Location: 00 FFC2
Type: R/W
Edge Detection Register (WKEDG3)
Byte-wide read/write register that configures the trigger condition of the input signals WUI30 to WUI37. The functionality of
the register is identical to the WKEDG1 register described above.
Location: 00 FFC4
Type: R/W
Edge Detection Register (WKEDG4)
Byte-wide read/write register that configures the trigger condition of the input signals WUI40 to WUI47. The functionality of
the register is identical to the WKEDG1 register described above.
Location: 00 FFC6
Type: R/W
Pending Register (WKPND1)
Byte-wide read/write register that latches the occurrence of a selected trigger condition associated with the input signals
WUI10 to WUI17. On reset, the WKPND1 register is cleared (0). This indicates that no occurrence of the selected trigger
condition is pending.
Note: Only software can set the register bits; only the WKPCL1 register can clear them. Writing a 0 to any of the bits leaves
their values unchanged. The WKPND1 register format is shown below:
Location: 00 FFC8
Type: R/W
Pending Register (WKPND2)
Byte-wide read/write register that latches the occurrence of a selected trigger condition associated with the input signals
WUI20 to WUI27. For a detailed description of the register see the above description of the WKPND1 register.
Location: 00 FFCC
Type: R/W
Pending Register (WKPND3)
Byte-wide read/write register that latches the occurrence of a selected trigger condition associated with the input signals
WUI30 to WUI37. For a detailed description of the register see the above description of the WKPND1 register.
Location: 00 FFD0
Type: R/W
Bit
Name
Reset
7-0
Bit
Wake-Up Pending. If set, (1) indicates that a valid trigger condition occurred on the associated input.
16
16
16
16
16
16
7
0
6
0
(Continued)
5
0
WKPD17-WKPD10
Description
110
4
0
3
0
2
0
1
0
Revision 1.07
0
0