FDC37C665IR SMSC Corporation, FDC37C665IR Datasheet - Page 37
FDC37C665IR
Manufacturer Part Number
FDC37C665IR
Description
3/5 Volt Advanced High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller with Infranred Support
Manufacturer
SMSC Corporation
Datasheet
1.FDC37C665IR.pdf
(162 pages)
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STATUS REGISTER ENCODING
During the Result Phase of certain commands, the Data Register contains data bytes that give the
status of the command just executed.
BIT NO.
7,6
1,0
5
4
3
2
IC
SE
EC
H
DS1,0
SYMBOL
Interrupt
Code
Seek End
Equipment
Check
Head
Address
Drive Select
NAME
Table 16 - Status Register 0
00 - Normal termination of command. The specified
command was properly executed and completed
without error.
01 - Abnormal termination of command. Command
execution was started, but was not successfully
completed.
10 - Invalid command.
could not be executed.
11 - Abnormal termination caused by Polling.
The FDC completed a Seek, Relative Seek or
Recalibrate command (used during a Sense Interrupt
Command).
The TRK0 pin failed to become a "1" after:
1. 80 step pulses in the Recalibrate command.
2. The Relative Seek command caused the FDC to
Unused. This bit is always "0".
The current head address.
The current selected drive.
37
step outward beyond Track 0.
DESCRIPTION
The requested command
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