Fujitsu MPD3XXXAT At command issuance I/O registers setting contents, 1F7HCM, 1F6HDH, 1F5HCH

Models: MPD3XXXAT

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xx or transfer mode

At command issuance (I/O registers setting contents)

1F7H(CM)

1

1

1

0

1

1

1

1

 

 

 

 

 

 

 

 

 

 

 

1F6H(DH)

×

×

×

 

DV

 

 

 

xx

 

 

 

 

 

 

 

 

 

 

 

 

1F5H(CH)

 

 

 

 

 

xx

 

 

 

1F4H(CL)

 

 

 

 

 

xx

 

 

 

1F3H(SN)

 

 

 

 

 

xx

 

 

 

1F2H(SC)

 

 

 

xx or transfer mode

 

 

 

1F1H(FR)

 

 

 

[See Table 5.6]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

At command completion (I/O registers contents to be read)

1F7H(ST)

 

 

 

Status information

 

 

 

 

 

 

 

 

 

1F6H(DH)

×

×

×

 

DV

 

xx

 

 

 

 

 

 

 

 

1F5H(CH)

 

 

 

 

xx

 

1F4H(CL)

 

 

 

 

xx

 

1F3H(SN)

 

 

 

 

xx

 

1F2H(SC)

 

 

 

 

xx

 

1F1H(ER)

 

 

 

Error information

 

 

 

 

 

 

 

 

 

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.

However, the IDD can operate with the PIO transfer mode 4 and multiword DMA transfer mode 2 regardless of reception of the SET FEATURES command for transfer mode setting.

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

00000

000

(X‘00’)

PIO flow control transfer mode X

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)

Multiword DMA transfer mode X

00100

000

(X‘20’: Mode 0)

 

00100

001

(X‘21’: Mode 1)

 

00100

010

(X‘22’: Mode 2)

Ultra DMA transfer mode X

01000

000

(X‘40’: Mode 0)

 

01000

001

(X‘41’: Mode 1)

 

01000

010

(X‘42’: Mode 2)

 

01000

011 (X‘43’: Mode 3)

 

01000

100

(X‘44’: Mode 4)

5 - 36

C141-E069-02EN

Page 103
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Fujitsu MPD3XXXAT manual At command issuance I/O registers setting contents, 1F7HCM, 1F6HDH, 1F5HCH, 1F4HCL, 1F3HSN, 1F2HSC