Maxtor 52049U4, 51024U2 1, 1 = Security feature set enabled 0, 1 = SMART feature set enabled

INTERFACE COMMANDS

WORD CONTENT DESCRIPTION

83Command sets supported. If words 82, 83 and 84 = 0000h or FFFFh command set notification not supported.

15 = shall be cleared to zero

14 = shall be set to one

13-1 = reserved

0, 1 = supports Download Microcode command

84Command set extensions supported. If words 84, 85 and 86 = 0000h or FFFFh command set notification not supported.

15 = shall be cleared to zero

14 = shall be set to one

13-0 = reserved

85Command set enabled. If words 84, 85 and 86 = 0000h or FFFFh command set notification not supported.

15, 1 = Identify Device DMA command enabled 14, 1 = NOP command enabled

13, 1 = Write Buffer command enabled 12, 1 = Read Buffer command enabled 11, 1 = Write Verify command enabled

10, 1 = Host Protected Area feature set enabled 9, 1 = Device Reset command enabled

8, 1 = Service Interrupt enabled 7, 1 = Release Interrupt enabled 6, 1 = Look Ahead enabled

5, 1 = Write Cache enabled

4, 1 = Packet command feature set enabled 3, 1 = Power Mangement feature set enabled 2, 1 = Removable feature set enabled

1, 1 = Security feature set enabled 0, 1 = SMART feature set enabled

86Command sets enabled. If words 85, 86 and 87 = 0000h or FFFFh command set notification not supported.

15 = shall be cleared to zero

14 = shall be set to one

13-1 = reserved

0, 1 = supports Download Microcode command

87Command sets enabled. If words 85, 86 and 87 = 0000h or FFFFh command set notification not supported.

15 = shall be cleared to zero

14 = shall be set to one

13-0 = reserved

88Ultra DMA

15-13 Reserved

12 1 = Ultra DMA mode 4 is selected

0 = Ultra DMA mode 4 is not selected

11 1 = Ultra DMA mode 3 is selected

0 = Ultra DMA mode 3 is not selected

10 1 = Ultra DMA mode 2 is selected

0 = Ultra DMA mode 2 is not selected

9 1 = Ultra DMA mode 1 is selected

0 = Ultra DMA mode 1 is not selected

8 1 = Ultra DMA mode 0 is selected

0 = Ultra DMA mode 0 is not selected

7-5 Reserved

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

127Reserved

128Security Status 15-9 Reserved

8 Security Level 0 = High, 1 = Maximum

7-5 Reserved

4 1 = Security count expired

3 1 = Security frozen

2 1 = Security locked

1 1 = Security enabled

0 1 = Security supported

129-130 Reserved

131Spin at power-up, but 0 is asserted when no spin at power-up is enabled. 132-159 Maxtor-specific (not used)

160-255 Reserved

7 – 11