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Interface
At command issuance (I/O registers setting contents)
1F7
(CM)
H
1F6
(DH)
H
1F5
(CH)
H
1F4
(CL)
H
1F3
(SN)
H
1F2
(SC)
H
1F1
(FR)
H
At command completion (I/O registers contents to be read)
1F7
(ST)
H
1F6
(DH)
H
1F5
(CH)
H
1F4
(CL)
H
1F3
(SN)
H
1F2
(SC)
H
1F1
(ER)
H
*1) Data Transfer Mode
The host sets X'03' to the Features register. By issuing this command with setting
a value to the Sector Count register, the transfer mode can be selected. Upper 5
bits of the Sector Count register defines the transfer type and lower 3 bits specifies
the binary mode value.
The IDD supports following values in the Sector Count register value. If other
value than below is specified, an ABORTED COMMAND error is posted.
PIO default transfer mode
PIO flow control transfer mode X
5-90
1
1
1
0
x
x
x
DV
xx
xx
xx
xx or *1~3
[See Table 5.5]
Status information
x
x
x
DV
xx
xx
xx
xx
Error information
00000 000 (X'00')
00001 000 (X'08': Mode 0)
00001 001 (X'09': Mode 1)
00001 010 (X'0A': Mode 2)
00001 011 (X'0B': Mode 3)
00001 100 (X'0C': Mode 4)
1
1
1
1
xx
xx
C141-E258
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