FDC37C672 datasheet(4/173 Pages) SMSC

Numer części	FDC37C672

Szczegółowy opis	ENHANCED SUPER I/O CONTROLLER WITH FAST IR

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Producent	SMSC [SMSC Corporation]

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4 / 173 page

Enhanced Super I/O Controller with Fast IR

Datasheet

SMSC FDC37C672

Page 4

Rev. 10-29-03

DATASHEET

Table of Contents

FDC37C672 Datasheet Revision History .................................................................................................. 3

Chapter 1

General Description................................................................................................................ 9

Chapter 2

Pin Configuration.................................................................................................................. 10

Chapter 3

Description of Pin Functions ................................................................................................ 12

3.1

Buffer Type Descriptions ............................................................................................................................14

Chapter 4

Description of Multifunction Pins .......................................................................................... 15

Chapter 5

Functional Description..........................................................................................................17

5.1

Super I/O Registers....................................................................................................................................17

5.2

Host Processor Interface............................................................................................................................17

Chapter 6

Floppy Disk Controller ..........................................................................................................18

6.1

FDC Internal Registers...............................................................................................................................18

6.1.1

Status Register A (SRA) .....................................................................................................................19

6.1.2

Status Register B (SRB) .....................................................................................................................21

6.1.3

Digital Output Register (DOR).............................................................................................................23

6.1.4

Tape Drive Register (TDR) .................................................................................................................24

6.1.5

Data Rate Select Register (DSR)........................................................................................................26

6.1.6

Main Status Register...........................................................................................................................29

6.1.7

Data Register (FIFO)...........................................................................................................................29

6.1.8

Digital Input Register (DIR) .................................................................................................................31

6.1.9

Configuration Control Register (CCR).................................................................................................33

6.1.10

Status Register Encoding ................................................................................................................34

6.2

RESET .......................................................................................................................................................36

6.2.1

RESET Pin (Hardware Reset).............................................................................................................36

6.2.2

DOR Reset vs. DSR Reset (Software Reset) .....................................................................................36

6.3

Modes of Operation....................................................................................................................................36

6.3.1

PC/AT mode - (IDENT high, MFM a "don't care") ...............................................................................36

6.3.2

PS/2 mode - (IDENT low, MFM high)..................................................................................................36

6.3.3

Model 30 mode - (IDENT low, MFM low) ............................................................................................36

6.4

DMA Transfers ...........................................................................................................................................37

6.5

Controller Phases.......................................................................................................................................37

6.5.1

Command Phase ................................................................................................................................37

6.5.2

Execution Phase .................................................................................................................................37

6.5.3

Data Transfer Termination ..................................................................................................................38

6.5.4

Result Phase.......................................................................................................................................39

Chapter 7

Command Set/Descriptions ................................................................................................. 40

Chapter 8

Instruction Set ...................................................................................................................... 43

8.1

Data Transfer Commands ..........................................................................................................................49

8.1.1

Read Data...........................................................................................................................................49

8.1.2

Read Deleted Data..............................................................................................................................51

8.1.3

Read A Track ......................................................................................................................................51

8.1.4

Write Data ...........................................................................................................................................52

8.1.5

Write Deleted Data..............................................................................................................................53

8.1.6

Verify...................................................................................................................................................53

8.1.7

Format A Track ...................................................................................................................................54

8.2

Control Commands ....................................................................................................................................55

8.2.1

Read ID...............................................................................................................................................55

8.2.2

Recalibrate..........................................................................................................................................55

8.2.3

Seek....................................................................................................................................................56

8.2.4

Sense Interrupt Status ........................................................................................................................56

8.2.5

Sense Drive Status .............................................................................................................................57

8.2.6

Specify ................................................................................................................................................57

8.2.7

Configure ............................................................................................................................................58

8.2.8

Version................................................................................................................................................59

8.2.9

Relative Seek ......................................................................................................................................59

8.2.10

Perpendicular Mode ........................................................................................................................60

8.3

LOCK .........................................................................................................................................................61

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