FDC37C672QFP SMSC Corporation, FDC37C672QFP Datasheet - Page 4

• Manufacturer Part Number: FDC37C672QFP
• Description: ENHANCED SUPER I/O CONTROLLER WITH FAST IR
• Manufacturer: SMSC Corporation

Table of Contents
FDC37C672 Datasheet Revision History .................................................................................................. 3
Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
SMSC FDC37C672
3.1
5.1
5.2
6.1
6.2
6.3
6.4
6.5
8.1
8.2
8.3
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.6
6.1.7
6.1.8
6.1.9
6.1.10
6.2.1
6.2.2
6.3.1
6.3.2
6.3.3
6.5.1
6.5.2
6.5.3
6.5.4
8.1.1
8.1.2
8.1.3
8.1.4
8.1.5
8.1.6
8.1.7
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8
8.2.9
8.2.10
Buffer Type Descriptions ............................................................................................................................14
Super I/O Registers....................................................................................................................................17
Host Processor Interface............................................................................................................................17
FDC Internal Registers...............................................................................................................................18
RESET .......................................................................................................................................................36
Modes of Operation....................................................................................................................................36
DMA Transfers ...........................................................................................................................................37
Controller Phases.......................................................................................................................................37
Data Transfer Commands ..........................................................................................................................49
Control Commands ....................................................................................................................................55
LOCK .........................................................................................................................................................61
General Description................................................................................................................ 9
Pin Configuration.................................................................................................................. 10
Description of Pin Functions ................................................................................................ 12
Description of Multifunction Pins .......................................................................................... 15
Functional Description.......................................................................................................... 17
Floppy Disk Controller .......................................................................................................... 18
Status Register A (SRA) .....................................................................................................................19
Status Register B (SRB) .....................................................................................................................21
Digital Output Register (DOR).............................................................................................................23
Tape Drive Register (TDR) .................................................................................................................24
Data Rate Select Register (DSR)........................................................................................................26
Main Status Register...........................................................................................................................29
Data Register (FIFO)...........................................................................................................................29
Digital Input Register (DIR) .................................................................................................................31
Configuration Control Register (CCR).................................................................................................33
RESET Pin (Hardware Reset).............................................................................................................36
DOR Reset vs. DSR Reset (Software Reset) .....................................................................................36
PC/AT mode - (IDENT high, MFM a "don't care") ...............................................................................36
PS/2 mode - (IDENT low, MFM high)..................................................................................................36
Model 30 mode - (IDENT low, MFM low) ............................................................................................36
Command Phase ................................................................................................................................37
Execution Phase .................................................................................................................................37
Data Transfer Termination ..................................................................................................................38
Result Phase.......................................................................................................................................39
Command Set/Descriptions ................................................................................................. 40
Instruction Set ...................................................................................................................... 43
Read Data ...........................................................................................................................................49
Read Deleted Data..............................................................................................................................51
Read A Track ......................................................................................................................................51
Write Data ...........................................................................................................................................52
Write Deleted Data..............................................................................................................................53
Verify...................................................................................................................................................53
Format A Track ...................................................................................................................................54
Read ID...............................................................................................................................................55
Recalibrate ..........................................................................................................................................55
Seek....................................................................................................................................................56
Sense Interrupt Status ........................................................................................................................56
Sense Drive Status .............................................................................................................................57
Specify ................................................................................................................................................57
Configure ............................................................................................................................................58
Version................................................................................................................................................59
Relative Seek ......................................................................................................................................59
Status Register Encoding ................................................................................................................34
Perpendicular Mode ........................................................................................................................60
DATASHEET
Page 4
Enhanced Super I/O Controller with Fast IR
Rev. 10-29-03
Datasheet