pc87317vul National Semiconductor Corporation, pc87317vul Datasheet - Page 6

• Manufacturer Part Number: pc87317vul
• Description: Pc87317vul/pc97317vul Superi/o Plug And Play Compatible With Acpi Compliant Controller/extender
• Manufacturer: National Semiconductor Corporation

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3.0
4.0
2.11
Keyboard (and Mouse) Controller (KBC) (Logical Devices 0 and 1)
3.1
3.2
3.3
3.4
3.5
3.6
Real-Time Clock (RTC) and Advanced Power Control (APC) (Logical Device 2)
4.1
4.2
4.3
4.4
2.10.6
2.10.7
2.10.8
2.10.9
2.10.10 CS2 Base Address LSB Register ................................................................................ 44
2.10.11 CS2 Configuration Register ......................................................................................... 44
2.10.12 Reserved, Second Level Indexes 0Bh-0Fh ................................................................. 44
2.10.13 Not Accessible, Second Level Indexes 10h-FFh ......................................................... 44
CONFIGURATION REGISTER BITMAPS ................................................................................ 44
SYSTEM ARCHITECTURE ....................................................................................................... 47
FUNCTIONAL OVERVIEW ....................................................................................................... 48
DEVICE CONFIGURATION ...................................................................................................... 48
3.3.1
3.3.2
3.3.3
3.3.4
EXTERNAL I/O INTERFACES .................................................................................................. 50
3.4.1
3.4.2
INTERNAL KBC - PC87317VUL INTERFACE .......................................................................... 51
3.5.1
3.5.2
3.5.3
INSTRUCTION TIMING ............................................................................................................. 52
RTC OVERVIEW ....................................................................................................................... 53
4.1.1
4.1.2
4.1.3
4.1.4
THE RTC REGISTERS ............................................................................................................. 56
4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
APC OVERVIEW ....................................................................................................................... 59
4.3.1
4.3.2
APC DETAILED DESCRIPTION ............................................................................................... 62
CS1 Base Address LSB Register ................................................................................ 43
CS1 Configuration Register ......................................................................................... 43
Reserved ..................................................................................................................... 44
CS2 Base Address MSB Register ............................................................................... 44
I/O Address Space ...................................................................................................... 48
Interrupt Request Signals ............................................................................................ 48
KBC Clock ................................................................................................................... 49
Timer or Event Counter ............................................................................................... 50
Keyboard and Mouse Interface ................................................................................... 50
General Purpose I/O Signals ....................................................................................... 50
The KBC DBBOUT Register, Offset 60h, Read Only .................................................. 52
The KBC DBBIN Register, Offset 60h (F1 Clear) or 64h (F1 Set), Write Only ............ 52
The KBC STATUS Register ........................................................................................ 52
RTC Hardware and Functional Description ................................................................. 53
Timekeeping ................................................................................................................ 54
Power Management .................................................................................................... 55
Interrupt Handling ........................................................................................................ 56
RTC Control Register A (CRA) .................................................................................... 56
RTC Control Register B (CRB) .................................................................................... 57
RTC Control Register C (CRC) ................................................................................... 58
RTC Control Register D (CRD) ................................................................................... 58
Date-of-Month Alarm Register (DMAR ........................................................................ 59
Month Alarm Register (MAR) ...................................................................................... 59
Century Register (CR) ................................................................................................. 59
System Power States .................................................................................................. 61
System Power Switching Logic ................................................................................... 62
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