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FDC37M603 View Datasheet(PDF) - SMSC -> Microchip

Part NameDescriptionManufacturer
FDC37M603 Enhanced Super I/O Controller with Infrared Support SMSC
SMSC -> Microchip SMSC
FDC37M603 Datasheet PDF : 182 Pages
First Prev 11 12 13 14 15 16 17 18 19 20 Next Last
PS/2 Model 30 Mode
7
6
5
4
3
2
1
0
INT
DRQ STEP TRK0 nHDSEL INDX WP nDIR
PENDING
F/F
RESET
0
COND.
0
0
N/A
1
N/A N/A
1
BIT 0 nDIRECTION
Active low status indicating the direction of head
movement. A logic "0" indicates inward
direction; a logic "1" indicates outward direction.
BIT 1 WRITE PROTECT
Active high status of the WRITE PROTECT disk
interface input. A logic "1" indicates that the disk
is write protected.
BIT 2 INDEX
Active high status of the INDEX disk interface
input.
BIT 3 nHEAD SELECT
Active low status of the HDSEL disk interface
input. A logic "0" selects side 1 and a logic "1"
selects side 0.
BIT 4 TRACK 0
Active high status of the TRK0 disk interface
input.
BIT 5 STEP
Active high status of the latched STEP disk
interface output pin. This bit is latched with the
STEP output going active, and is cleared with a
read from the DIR register, or with a hardware
or software reset.
BIT 6 DMA REQUEST
Active high status of the DRQ output pin.
BIT 7 INTERRUPT PENDING
Active high bit indicating the state of the Floppy
Disk Interrupt output.
14
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