w83977atg Winbond Electronics Corp America, w83977atg Datasheet - Page 3

• Manufacturer Part Number: w83977atg
• Description: W83877tf Plus Kbc, Gp I/o, Wake-up, Fir, Cir, Pb-free
• Manufacturer: Winbond Electronics Corp America

Table of Contents-
1.
2.
3.
4.
5.
6.
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.1
5.2
6.1
6.2
GENERAL DESCRIPTION .............................................................................................................. 1
FEATURES...................................................................................................................................... 2
PIN CONFIGURATION.................................................................................................................... 5
PIN DESCRIPTION ......................................................................................................................... 6
FDC FUNCTIONAL DESCRIPTION.............................................................................................. 18
UART PORT .................................................................................................................................. 41
Host Interface ........................................................................................................................ 6
General Purpose I/O Port...................................................................................................... 9
Serial Port Interface............................................................................................................. 10
Infrared Interface ................................................................................................................. 11
Multi-Mode Parallel Port ...................................................................................................... 11
FDC Interface ...................................................................................................................... 15
KBC Interface ...................................................................................................................... 17
POWER PINS...................................................................................................................... 17
ACPI Interface ..................................................................................................................... 17
W83977ATF/ATG FDC ....................................................................................................... 18
5.1.1
5.1.2
5.1.3
5.1.4
5.1.5
5.1.6
5.1.7
Register Descriptions .......................................................................................................... 29
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.2.8
5.2.9
Universal Asynchronous Receiver/Transmitter (UART A, UART B)................................... 41
Register Address................................................................................................................. 41
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
AT interface ..........................................................................................................................18
FIFO (Data) ..........................................................................................................................18
Data Separator .....................................................................................................................19
Write Precompensation ........................................................................................................19
Perpendicular Recording Mode ............................................................................................19
FDC Core .............................................................................................................................20
FDC Commands...................................................................................................................20
Status Register A (SA Register) (Read base address + 0)...................................................29
Status Register B (SB Register) (Read base address + 1)...................................................31
Digital Output Register (DO Register) (Write base address + 2) ..........................................33
Tape Drive Register (TD Register) (Read base address + 3)...............................................33
Main Status Register (MS Register) (Read base address + 4).............................................34
Data Rate Register (DR Register) (Write base address + 4) ................................................34
FIFO Register (R/W base address + 5) ................................................................................36
Digital Input Register (DI Register) (Read base address + 7)...............................................38
Configuration Control Register (CC Register) (Write base address + 7) ..............................39
UART Control Register (UCR) (Read/Write) ........................................................................41
UART Status Register (USR) (Read/Write) ..........................................................................43
Handshake Control Register (HCR) (Read/Write) ................................................................44
Handshake Status Register (HSR) (Read/Write)..................................................................45
UART FIFO Control Register (UFR) (Write only)..................................................................46
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W83977ATF/W83977ATG