pc87591l-n05 National Semiconductor Corporation, pc87591l-n05 Datasheet - Page 105

• Manufacturer Part Number: pc87591l-n05
• Description: Lpc Mobile Embedded Controller
• Manufacturer: National Semiconductor Corporation

Revision 1.2
4.0 Embedded Controller Modules
Interrupts
The combined output of all pending and enabled channels of the MIWU module generates the wake-up signal, which is fed into
both the Power Management Control module (PMC) and the Interrupt Control Unit (ICU). Therefore, each wake-up of the de-
vice can be followed by a wake-up interrupt. Since the device can not enter the power reduction mode without having the core
execute a “WAIT” instruction, a wake-up interrupt is needed to terminate the “WAIT” instruction on wake-up.
WUI10
WUI17
WUI20
WUI27
WUI30
WUI37
WUI40
WUI47
Note: Not all MIWU-ICU connections are implemented; for details,
to
to
to
to
see ICU interrupt assignments in Table 16 on page 103.
WKUP Inputs Group 3
WKUP Inputs Group 3
WKUP Inputs Group 4
WKUP Inputs Group 1
WKEDG1
(Uses registers WKEDG4, WKPND4 and WKEN4)
(Uses registers WKEDG2, WKPND2 and WKEN2)
(Uses registers WKEDG3, WKPND3 and WKEN3)
WKPND1
Figure 31. Multi-Input Wake-Up Block Diagram
7
7
0
0
7
(Continued)
..........................
Peripheral Bus
WKEN1
105
1
0
1
0
SEL
SEL
0
WKINTA
WKO10
WKO17
WKINTB
WKO20
WKO27
WKINTC
WKO30
WKO37
WKINTD
WKO40
WKO47
.
.
.
.
Module
Wake-Up Signal to
Power Management
Management
Interrupt
Control
Power
(PMC)
(ICU)
Unit
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