W83877 Winbond Electronics Corp America, W83877 Datasheet - Page 21
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W83877
Manufacturer Part Number
W83877
Description
Winbond I/O
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83877.pdf
(125 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
W83877AF
Manufacturer:
INTEL
Quantity:
5 040
Company:
Part Number:
W83877F
Manufacturer:
Winbond
Quantity:
77
Company:
Part Number:
W83877F
Manufacturer:
WINBOND
Quantity:
147
Part Number:
W83877F
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Part Number:
W83877TF
Manufacturer:
WINBOND/华邦
Quantity:
20 000
Company:
Part Number:
W83877TG
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
10 000
2.1.7 FDC Commands
Command Symbol Descriptions:
C:
D:
DIR:
DS0:
DS1:
DTL:
EC:
EOT:
EFIFO:
EIS:
EOT:
FIFOTHR: FIFO Threshold
GAP:
GPL:
H:
HDS:
HLT:
HUT:
LOCK:
MFM:
MT:
N:
NCN:
ND:
OW:
PCN:
POLL:
PRETRK:
R:
RCN:
R/W:
SC:
SK:
Cylinder number 0 - 256
Data Pattern
Step Direction
DIR = 0, step out
DIR = 1, step in
Disk Drive Select 0
Disk Drive Select 1
Data Length
Enable Count
End of Track
Enable FIFO
Enable Implied Seek
End of track
Gap length selection
Gap Length
Head number
Head number select
Head Load Time
Head Unload Time
Lock EFIFO, FIFOTHR, PTRTRK bits prevent affected by software reset
MFM or FM Mode
Multitrack
The number of data bytes written in a sector
New Cylinder Number
Non-DMA Mode
Overwritten
Present Cylinder Number
Polling Disable
Precompensation Start Track Number
Record
Relative Cylinder Number
Read/Write
Sector/per cylinder
Skip deleted data address mark
- 21 -
Publication Release Date: January 1996
W83877F
Revision A2