W83977G Winbond Electronics Corp America, W83977G Datasheet - Page 136
W83977G
Manufacturer Part Number
W83977G
Description
W83877TF plus KBC, CIR, RTC, Pb-free
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977G.pdf
(182 pages)
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Manufacturer:
Winbond
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TABLE A
Note:Refer to CRF2 for SELDEN value in the cases when CRF0, bit0=1.
TABLE B
13.3 Logical Device 1 (Parallel Port)
CR30 (Default 0x01 when PNPCSV=0 at POR)
CR31
DMOD0
Bit 7-1 : Reserved.
Bit 0 :
Bit 7-2 : Reserved.
Bit 1 : ENRNGCK -- > Enable I/O Range check
Bit 0 : FORIORD --> Forces LDN to respond I/O read
DRTS1
DRIVE RATE TABLE
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
0
0
1
1
0
0
1
SELECT
= 1 Activates the logical device.
= 0 Logical device is inactive.
DMOD1
DRTS0
0
1
0
1
0
1
0
DRVDEN0(PIN 2)
DRATE1
SELDEN
DRATE1
SELDEN
DRATE0
1
0
0
1
1
0
0
1
1
0
0
1
DATA RATE
DRATE0
1
0
1
0
1
0
1
0
1
0
1
0
-128
DRVDEN1(PIN 3)
DRATE0
DRATE0
DRATE0
DRATE1
SELECTED DATA RATE
1Meg
1Meg
1Meg
2Meg
500K
300K
250K
500K
500K
250K
500K
250K
MFM
4/2/1 MB 3.5”“
2/1 MB 5.25”
2/1.6/1 MB 3.5” (3-MODE)
250K
150K
125K
250K
250K
125K
250K
125K
FM
---
---
---
---
DRIVE TYPE
CRF0 BIT 0=0
SELDEN
1
1
0
0
1
1
0
0
1
1
0
0
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