Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

PC8477BVF-1 Datasheet(PDF) 46 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC8477BVF-1
Description  Advanced Floppy Disk Controller
Download  54 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC8477BVF-1 Datasheet(HTML) 46 Page - National Semiconductor (TI)

Back Button PC8477BVF-1 Datasheet HTML 42Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 43Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 44Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 45Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 46Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 47Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 48Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 49Page - National Semiconductor (TI) PC8477BVF-1 Datasheet HTML 50Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 46 / 54 page
background image
70 Reference Section
71 MNEMONIC DEFINITIONS FOR PC8477B COMMANDS
Symbol
Description
BFR
Buffer enable bit used in the Mode command
Enabled open-collector output buffers
BST
Burst Mode disable control bit used in Mode
command Selects the Non-Burst FIFO mode if
the FIFO is enabled
DC0
Drive Configuration 0 – 3 Used to set a drive to
conventional or perpendicular mode Used in
DC1
Perpendicular Mode command
DC2
DC3
DENSEL Density Select control bits used in the Mode
command
DIR
Direction control bit used in Relative Seek
command to indicate step in or out
DMA
DMA mode enable bit used in the Specify
command
DR0
Drive Select 0 – 1 bits used in most commands
Selects the logical drive
DTL
Data Length parameter used in the Read Write
Scan and Verify commands
EC
Enable Count control bit used in the Verify
command When this bit is 1 the DTL parameter
becomes SC (Sector Count)
EIS
Enable Implied Seeks Used in the Configure
command
EOT
End of Track parameter set in the Read Write
Scan and Verify commands
ETR
Extended Track Range used with the Seek
command
FIFO
First-In First-Out buffer Also a control bit used in
the Configure command to enable or disable the
FIFO
FRD
FIFO Read disable control bit used in the Mode
command
FWR
FIFO Write disable control bit used in the Mode
command
GAP
Gap2 control bit used in the Perpendicular Mode
command
HD
Head Select control bit used in most commands
Selects Head 0 or 1 of the disk
IAF
Index Address Field control bit used in the Mode
command Enables the ISO Format during the
Format command
IPS
Implied Seek enable bit used in the Mode Read
Write and Scan commands
LOCK
Lock enable bit in the Lock command Used to
make certain parameters unaffected by a
software reset
LOW
Low Power control bits used in the Mode
command
PWR
Symbol
Description
MFM
Modified Frequency Modulation control bit used
in the Read Write Format Scan and Verify
commands Selects MFM or FM data encoding
MFT
Motor Off Time programmed in the Specify
command
MNT
Motor On Time programmed in the Specify
command
MT
Multi-Track enable bit used in the Read Write
Scan and Verify commands
OW
Overwrite control bit used in the Perpendicular
Mode command
POLL
Enable Drive Polling bit used in the Configure
command
PRETRK Precompensation Track Number used in the
Configure command
PTR
Present Track Register Contains the internal
track number for one of the four logical disk
drives
PU
Pump diagnostic enable bit used in the Mode
command
R255
Recalibrate control bit used in Mode command
Sets maximum recalibrate step pulses to 255
RG
Read Gate diagnostic enable bit used in the
Mode command
RTN
Relative Track Number used in the Relative
Seek command
SC
Sector Count control bit used in the Verify
command
SK
Skip control bit used in read and scan
operations
SRT
Step Rate Time programmed in the Specify
command Determines the time between step
pulses for seek and recalibrates
ST0
Status Register 0 – 3 Contains status
information about the execution of a command
ST1
Read in the Result Phase of some commands
ST2
ST3
THRESH FIFO threshold parameter used in the Configure
command
TMR
Timer control bit used in the Mode command
Affects the timers set in the Specify command
WG
Write Gate control bit used in the Perpendicular
Mode command
WLD
Wildcard bit in the Mode command used to
enable or disable the wildcard byte (FF) during
Scan commands
46


Similar Part No. - PC8477BVF-1

ManufacturerPart #DatasheetDescription
logo
Sharp Corporation
PC847 SHARP-PC847 Datasheet
85Kb / 4P
   High Density Mounting Type Photocoupler
PC847X SHARP-PC847X Datasheet
254Kb / 13P
   DIP 16pin (4-channel) General Purpose Photocoupler
Date Sep. 30. 2003
PC847X7J000F SHARP-PC847X7J000F Datasheet
230Kb / 13P
   DIP 16pin (4-channel) General Purpose Photocoupler
PC847XJ0000F SHARP-PC847XJ0000F Datasheet
230Kb / 13P
   DIP 16pin (4-channel) General Purpose Photocoupler
PC847XJ0000F SHARP-PC847XJ0000F Datasheet
230Kb / 13P
   DIP 16pin (4-channel) General Purpose Photocoupler
More results

Similar Description - PC8477BVF-1

ManufacturerPart #DatasheetDescription
logo
List of Unclassifed Man...
SAB2797B ETC1-SAB2797B Datasheet
1Mb / 30P
   Advanced Floppy Disk Formatter/Controller Family
logo
Microchip Technology
FDC37C78-HT MICROCHIP-FDC37C78-HT Datasheet
345Kb / 82P
   Floppy Disk Controller
Rev. 02-16-07
logo
Toshiba Semiconductor
TC8569AF TOSHIBA-TC8569AF Datasheet
3Mb / 78P
   FLOPPY DISK CONTROLLER
logo
Intel Corporation
82078 INTEL-82078 Datasheet
70Kb / 3P
   FLOPPY DISK CONTROLLER
logo
SMSC Corporation
FDC37C78 SMSC-FDC37C78 Datasheet
420Kb / 82P
   Floppy Disk Controller
FDC37C78 SMSC-FDC37C78_07 Datasheet
347Kb / 82P
   Floppy Disk Controller
logo
Toshiba Semiconductor
TC8566AF TOSHIBA-TC8566AF Datasheet
1Mb / 67P
   FLOPPY DISK CONTROLLER
logo
List of Unclassifed Man...
WD76C20 ETC-WD76C20 Datasheet
2Mb / 55P
   FLOPPY DISK CONTROLLER PORTION
logo
SMSC Corporation
USB97CFDC2-01 SMSC-USB97CFDC2-01 Datasheet
167Kb / 24P
   USB Floppy Disk Controller
logo
Hynix Semiconductor
GM82C765B HYNIX-GM82C765B Datasheet
222Kb / 36P
   FLOPPY DISK SUBSYSTEM CONTROLLER
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com