ADP315PC87570 National Semiconductor, ADP315PC87570 Datasheet - Page 8

• Manufacturer Part Number: ADP315PC87570
• Description: Keyboard and Power Management Controller
• Manufacturer: National Semiconductor

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8.0
9.0
10.0
7.2
7.3
Power Mode Control (PMC)
8.1
8.2
8.3
8.4
8.5
Interrupt Control Unit (ICU)
9.1
9.2
9.3
9.4
Multi-Input Wake-Up (MIWU)
10.1
FUNCTIONAL DESCRIPTION .................................................................................................. 76
7.2.1
7.2.2
HFCG REGISTERS ................................................................................................................... 77
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
FEATURES ................................................................................................................................ 79
THE POWER MODES ............................................................................................................... 79
SWITCHING BETWEEN POWER MODES ............................................................................... 79
8.3.1
8.3.2
POWER MODE CONTROL REGISTER (PMCR) ..................................................................... 80
USAGE HINTS .......................................................................................................................... 80
FEATURES ................................................................................................................................ 81
FUNCTIONAL DESCRIPTION .................................................................................................. 81
9.2.1
9.2.2
9.2.3
9.2.4
9.2.5
9.2.6
ICU REGISTERS ....................................................................................................................... 82
9.3.1
9.3.2
9.3.3
9.3.4
9.3.5
9.3.6
9.3.7
9.3.8
USAGE HINTS .......................................................................................................................... 83
9.4.1
9.4.2
9.4.3
FEATURES ................................................................................................................................ 84
Setting Clock Frequency ............................................................................................. 76
Fast Clock Setting ....................................................................................................... 77
HFCG Control Register (HFCGCTRL) ........................................................................ 77
HFCGM Low Value Register (HFCGML) ..................................................................... 77
HFCGM High Value Register (HFCGMH) ................................................................... 77
HFCGN Value Register (HFCGN) ............................................................................... 77
HFCGI Low Value Register (HFCGIL) ......................................................................... 78
HFCGI High Value Register (HFCGIH) ....................................................................... 78
Decreasing Power Consumption ................................................................................. 79
Increasing Performance .............................................................................................. 79
NMI .............................................................................................................................. 81
Maskable Interrupts ..................................................................................................... 81
Edge/Level and Polarity Selection ............................................................................... 81
Pending Interrupts ....................................................................................................... 81
External Interrupt Inputs .............................................................................................. 81
Interrupt Assignment ................................................................................................... 81
NMI Status Register (NMISTAT) ................................................................................. 82
Power Fail Control Register (PFAIL) ........................................................................... 82
Interrupt Vector Register (IVCT) .................................................................................. 83
Interrupt Enable and Mask Register (IENAM) ............................................................. 83
Interrupt Pending Register (IPEND) ............................................................................ 83
Edge Interrupt Clear Register (IECLR) ........................................................................ 83
Edge/Level Trigger Configuration Register (IELTG) .................................................... 83
Trigger Polarity Configuration Register (ITRPL) .......................................................... 83
Initializing ..................................................................................................................... 83
Clearing ....................................................................................................................... 83
Nesting ........................................................................................................................ 83
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