FDC37C669-MS Standard Microsystems (SMSC), FDC37C669-MS Datasheet - Page 32
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FDC37C669-MS
Manufacturer Part Number
FDC37C669-MS
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.FDC37C669-MS.pdf
(162 pages)
Specifications of FDC37C669-MS
Pin Count
100
Lead Free Status / RoHS Status
Compliant
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Model 30 Mode
BITS 0 - 1 DATA RATE SELECT
These bits control the data rate of the floppy controller.
See Table 13 for the settings corresponding to the
individual data rates.
unaffected by a software reset, and are set to 250kb/s
after a hardware reset.
BIT 2 NOPREC
This bit reflects the value of NOPREC bit set in the CCR
register.
RESET
COND.
CHG
DSK
N/A
7
The data rate select bits are
6
0
0
5
0
0
4
0
0
DMAEN NOPREC DRATE
32
3
0
BIT 3 DMAEN
This bit reflects the value of DMAEN bit set in the DOR
register bit 3.
BITS 4 - 6 UNDEFINED
Always read as a logic "0"
BIT 7 DSKCHG
This bit monitors the pin of the same name and reflects
the opposite value seen on the pin.
2
0
SEL1
1
1
DRATE
SEL0
0
0
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