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PC87307 Datasheet(PDF) 98 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87307
Description  PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
PDF  218 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87307 Datasheet(HTML) 98 Page - National Semiconductor (TI)

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Result Phase
Upon terminating the execution phase of the READ DATA
command, the controller asserts IRQ6, indicating the begin-
ning of the result phase. The microprocessor must then
read the result bytes from the FIFO.
The values that are read back in the result bytes are shown
in Table 5-18. If an error occurs, the result bytes indicate the
sector read when the error occurred.
76543210
Result Phase Status Register 0 (ST0)
Result Phase Status Register 1 (ST1)
Result Phase Status Register 2 (ST2)
Track Number
Head Number
Sector Number
Bytes-Per-Sector Code
5.7.11
The READ DELETED DATA Command
The READ DELETED DATA command reads logical sec-
tors containing a Address Mark (AM) for deleted data from
the selected drive and makes the data available to the host
microprocessor.
This command is like the READ DATA command, except for
the setting of the Control Mark bit (bit 6) in ST2 and the skip-
ping of sectors. See description of execution phase.
Command Phase
See READ DATA command for a description of the com-
mand bytes.
Execution Phase
Data read from disk drive is transferred to the system in
DMA or non-DMA modes. See Section 5.4.2 on page 78.
The effect of Skip Control (SK) on the READ DELETED
DATA command is summarized in Table 5-19.
76543210
MT
MFM
SK
01100
IPS
XXXX
HD
DS1
DS0
Track Number
Head Number
Sector Number
Bytes-Per-Sector Code
End of Track (EOT) Sector Number
Bytes Between Sectors - Gap 3
Data Length (Obsolete)
TABLE 5-18. Result Phase Termination Values with No Error
a. End of Track sector number from the command phase.
b. The number of the sector last operated on by controller.
c. Track number programmed in the command phase
Multi-Track
(MT)
Head #
(HD)
End of Track (EOT)
Sector Number
ID Information in Result Phase
Track Number Head Number Sector Number
Bytes-per-Sector
Code
00
< EOTa Sector #
No Change
No Change
Sectorb # + 1
No Change
00
= EOTa Sector #
Trackc # + 1
No Change
1
No Change
01
< EOTa Sector #
No Change
No Change
Sectorb # + 1
No Change
01
= EOTa Sector #
Trackc # + 1
No Change
1
No Change
10
< EOTa Sector #
No Change
No Change
Sectorb # + 1
No Change
10
= EOTa Sector #
No Change
1
1
No Change
11
< EOTa Sector #
No Change
No Change
Sectorb # + 1
No Change
11
= EOTa Sector #
Trackc # + 1
0
1
No Change



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