PC87307VUL National Semiconductor, PC87307VUL Datasheet - Page 6
PC87307VUL
Manufacturer Part Number
PC87307VUL
Description
PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
Manufacturer
National Semiconductor
Datasheet
1.PC87307VUL.pdf
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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
2.10.7
2.10.8
2.10.9
2.10.10 CS2 Base Address LSB Register, Second Level Index 09h ....................................... 40
2.10.11 CS2 Configuration Register, Second Level Index 0Ah ................................................ 40
2.10.12 Reserved, Second Level Indexes 0Bh-0Fh ................................................................. 40
2.10.13 Not Accessible, Second Level Indexes 10h-FFh ......................................................... 40
CARD CONTROL REGISTER BITMAPS .................................................................................. 41
SYSTEM ARCHITECTURE ....................................................................................................... 43
FUNCTIONAL OVERVIEW ....................................................................................................... 44
DEVICE CONFIGURATION ...................................................................................................... 44
3.3.1
3.3.2
3.3.3
3.3.4
EXTERNAL I/O INTERFACES .................................................................................................. 46
3.4.1
3.4.2
INTERNAL KBC - PC87307/PC97307 INTERFACE ................................................................. 47
3.5.1
3.5.2
3.5.3
INSTRUCTION TIMING ............................................................................................................. 48
RTC OPERATION OVERVIEW ................................................................................................. 49
4.1.1
4.1.2
4.1.3
4.1.4
THE RTC REGISTERS ............................................................................................................. 52
4.2.1
4.2.2
4.2.3
4.2.4
APC OVERVIEW ....................................................................................................................... 55
4.3.1
4.3.2
4.3.3
DETAILED FUNCTIONAL DESCRIPTION ................................................................................ 58
4.4.1
4.4.2
4.4.3
CS1 Configuration Register, Second Level Index 06h ................................................ 40
Reserved, Second Level Index 07h ............................................................................. 40
CS2 Base Address MSB Register, Second Level Index 08h ...................................... 40
I/O Address Space ...................................................................................................... 44
Interrupt Request Signals ............................................................................................ 44
KBC Clock ................................................................................................................... 45
Timer or Event Counter ............................................................................................... 46
Keyboard and Mouse Interface ................................................................................... 46
General Purpose I/O Signals ....................................................................................... 46
The KBC DBBOUT Register, Offset 60h, Read Only .................................................. 47
The KBC DBBIN Register, Offset 60h (F1 Clear) or 64h (F1 Set), Write Only ............ 47
The KBC STATUS Register, Offset 64h, Read Only ................................................... 48
RTC Hardware and Functional Description ................................................................. 49
Timekeeping ................................................................................................................ 50
Power Supply .............................................................................................................. 51
Interrupt Handling ........................................................................................................ 52
RTC Control Register A (CRA), Index 0Ah .................................................................. 52
RTC Control Register C (CRC), Index 0Ch ................................................................. 54
RTC Control Register D (CRD), Index 0Dh ................................................................. 55
User Selectable Parameters ........................................................................................ 55
System Power States .................................................................................................. 56
System Power Switching Logic ................................................................................... 56
The ONCTL Signal ...................................................................................................... 58
Entering Power States ................................................................................................. 58
System Power-Up and Power-Off Activation Event Description .................................. 59
RTC Control Register B (CRB), Index 0Bh ................................................................. 54
Table of Contents
6
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