參數(shù)資料
型號: FDC37C666GT
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 存儲控制器/管理單元
英文描述: High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers
中文描述: 1 Mbps, IDE COMPATIBLE, FLOPPY DISK DRIVE CONTROLLER, PQFP100
封裝: QFP-100
文件頁數(shù): 39/152頁
文件大?。?/td> 621K
代理商: FDC37C666GT
39
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.
Table 17 - Status Register 0
NAME
Interrupt
Code
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. The requested command
could not be executed.
11 - Abnormal termination caused by Polling.
Seek End
The FDC completed a Seek, Relative Seek or
Recalibrate command (used during a Sense Interrupt
Command).
Equipment
Check
1.
80 step pulses in the Recalibrate command.
2.
The Relative Seek command caused the FDC to
step outward beyond Track 0.
Unused. This bit is always "0".
Head
Address
Drive Select
The current selected drive.
BIT NO.
7,6
SYMBOL
IC
DESCRIPTION
00 - Normal termination of command. The specified
5
SE
4
EC
The TRK0 pin failed to become a "1" after:
3
2
H
The current head address.
1,0
DS1,0
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