參數(shù)資料
型號: IT8673F
廠商: Electronic Theatre Controls, Inc.
英文描述: GT 35C 35#12 SKT PLUG
中文描述: 先進(jìn)的輸入/輸出(高級I / O)的初步規(guī)范V0.5
文件頁數(shù): 63/128頁
文件大小: 780K
代理商: IT8673F
IT8673F
11.4.9.3 Result Phase
For commands that require data written to the FIFO, the FDC enters the Result phase when the IRQ or
DRQ is activated. The MSR bit 7 (RQM) and MSR bit 6 (DIO) must equal to 1 to read the data bytes. The
Result phase is completed when the host has read each of the defined set of result bytes for the given
command. Right after the completion of the phase, RQM is set to 1, DIO is set to 0, and the MSR bit 4 (CB)
is cleared, indicating the FDC is ready to receive the next command.
3
53
11.4.9.4 Result Phase Status Registers
For commands that contain a Result phase, these Read only registers indicate the status of the most
recently executed command.
Table 11-10. Status Register 0 (ST0)
Bit
Symbol
Name
Description
7-6
IC
Interrupt Code
00: Execution of the command has been completed correctly
01: Execution of the command began, but failed to complete successfully
10: INVALID command
11: Execution of the command was not completed correctly, due to a polling
error
The FDC executed a SEEK or RE-CALIBRATE command.
5
SE
Seek End
4
EC
Equipment
Check
The TK00# pin was not set after a RE-CALIBRATE command was issued.
3
NU
Not Used
-
2
H
Head Address
The current head address.
1
DSB
Drive B Select
Drive B selected.
0
DSA
Drive A Select
Drive A selected.
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