FDC37B787-NS Standard Microsystems (SMSC), FDC37B787-NS Datasheet - Page 32
FDC37B787-NS
Manufacturer Part Number
FDC37B787-NS
Description
Manufacturer
Standard Microsystems (SMSC)
Datasheet
1.FDC37B787-NS.pdf
(249 pages)
Specifications of FDC37B787-NS
Pin Count
128
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.
corresponding to the individual data rates. The
data rate select bits are unaffected by a software
reset, and are set to 250 Kbps after a hardware
reset.
BIT 2 NOPREC
This bit reflects the value of NOPREC bit set in the
CCR register.
RESET
COND.
See Table 14 for the settings
CHG
DSK
N/A
7
6
0
0
0
5
0
32
4
0
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 disk cable
or the value programmed in the Force Disk
Change Register (see Configuration Register
LD8:CRC1[1:0]).
DMAEN NOPREC DRATE
3
0
2
0
SEL1
1
1
DRATE
SEL0
0
0
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