Toshiba 4006GAH Manual Do Utilizador

 

 

Toshiba Corporation Digital Media Network Company 

 

Page 137 of 157 

© 2005, Copyright TOSHIBA Corporation All Rights Reserved 

The format of the overlay transmitted by the device is described inTable 10.8-9. The restrictions on changing 
these bits is described in the text following Table 10.8-9. If any of the bit modification restrictions described are 
violated, the device shall return command aborted. 

 

Table 10.8-9    Device Configuration Overlay data stracture 

0 

Data structure revision 

1 

Multiword DMA modes supported 

 15-3 

Reserved 

 

2 

1 = Multiword DMA mode 2 and below are supported 

 

1 

1 = Multiword DMA mode 1 and below are supported 

 

0 

1 = Multiword DMA mode 0 is supported 

2 

Ultra DMA modes supported 

 15-5 

Reserved 

 

5 

1 = Ultra DMA mode 5 and below are supported 

 

4 

1 = Ultra DMA mode 4 and below are supported 

 

3 

1 = Ultra DMA mode 3 and below are supported 

 

2 

1 = Ultra DMA mode 2 and below are supported 

 

1 

1 = Ultra DMA mode 1 and below are supported 

 

0 

1 = Ultra DMA mode 0 is supported 

3-6 

Maximum LBA address 

7 

Command set/feature set supported 

 15-9 

Reserved 

 

8 

1 = 48-bit Addressing feature set supported 

 

7 

1 = Host Protected Area feature set supported 

 

6 

1 = Automatic acoustic management supported 

 

5 

1 = READ/WRITE DMA QUEUED commands supported 

 

4 

1 = Power-up in Standby feature set supported 

 

3 

1 = Security feature set supported 

 

2 

1 = SMART error log supported 

 

1 

1 = SMART self-test supported 

 

0 

1 = SMART feature set supported 

8-254 Reserved 

255 Integrity 

word 

 15-8 

Checksum 

 7-0 

Signature 

 

 
Word 0 shall contain the value 0001h. 
 

 
Word 1 bits 15:3 are reserved. 
 
Word 1 bit 2 is cleared to disable support for Multiword DMA mode 2 and has the effect of clearing bit 2 in word 
63 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Multiword 
DMA mode 2 is currently selected.   
 
Word 1 bit 1 is cleared to disable support for Multiword DMA mode 1 and has the effect of clearing bit 1 in word 
63 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. This bit shall not be cleared if Multiword 
DMA mode 2 is supported or Multiword DMA mode 1 or 2 is selected. 
 
Word 1 bit 0 shall not be cleared.