W83627G Winbond Electronics Corp America, W83627G Datasheet - Page 94

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W83627G

Manufacturer Part Number
W83627G
Description
LPC Interface I/O plus Game Port, MIDI Port, Pb-free package
Manufacturer
Winbond Electronics Corp America
Datasheet

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CRF4 (Default 0x00)
FDD0 Selection:
CRF5 (Default 0x00)
FDD1 Selection: Same as FDD0 of CRF4.
DRTS1
DRIVE RATE TABLE
0
0
1
4 - 3
1 - 0
BIT
7
6
5
2
SELECT
Reserved.
Precomp. Disable.
1: Disable FDC Precompensation.
0: Enable FDC Precompensation.
Reserved.
DRTS1, DRTS0: Data Rate Table select (Refer to TABLE A).
00: Select Regular drives and 2.88 format
01: 3-mode drive
10: 2 Meg Tape
11: Reserved
Reserved.
DTYPE0, DTYPE1: Drive Type select (Refer to TABLE B).
DRTS0
0
1
0
DRATE1
1
0
0
1
1
0
0
1
1
0
0
1
DATA RATE
DRATE0
TABLE A
1
0
1
0
1
0
1
0
1
0
1
0
- 90 -
DESCRIPTION
SELECTED DATA RATE
1Meg
1Meg
1Meg
2Meg
500K
300K
250K
500K
500K
250K
500K
250K
MFM
W83627HF/ F/ HG/ G
250K
150K
125K
250K
250K
125K
250K
125K
FM
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SELDEN
1
1
0
0
1
1
0
0
1
1
0
0

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