PC87334VLJ datasheet(53/102 Pages) NSC

No de pièce	PC87334VLJ

Description	SuperI/O 3.3V/5V Floppy Disk Controller, Dual UARTs, Infrared, IEEE1284 Parallel Port, and IDE Interface

PDF	102 Pages

Scroll/Zoom	100%

Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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53 / 102 page

40 FDC Command Set Description (Continued)

Command Phase

MFM

IPS

DR1

DR0

Track Number

Drive Head Number

Sector Number

Bytes per Sector

End of Track Sector Number

Intersector Gap Length

Data Length

Execution Phase

Data is transferred from the system to

the controller via DMA or Non-DMA modes and written to

the disk

Result Phase

Status Register 0

Status Register 1

Status Register 2

Track Number

Head Number

Sector Number

Bytes per Sector

4124 Write Deleted Data

The Write Deleted Data command receives data from the

host and writes logical sectors containing a Deleted Data

AM to the selected drive This command is identical to the

Write Data command except that a Deleted Data AM is writ-

ten to the Data Field instead of a Normal Data AM

Command Phase

MFM

IPS

DR1

DR0

Track Number

Drive Head Number

Sector Number

Bytes per Sector

End of Track Sector Number

Intersector Gap Length

Data Length

Execution Phase

Data is transferred from the system to

the controller via DMA or Non-DMA modes and written to

the disk

Result Phase

Status Register 0

Status Register 1

Status Register 2

Track Number

Head Number

Sector Number

Bytes per Sector

PC87334VLJ Fiches technique(PDF) 53 Page - National Semiconductor (TI)

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