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5-36 C141-E145-02EN
Table 5.4 Information to be read by IDENTIFY DEVICE command (3 of 3)
Word Value Description
86 *14 Valid of command sets/function *14
87 *15 Default of command sets/function *15
88 X’xx3F’ Ultra DMA transfer mode *16
89 Set by a device Security Erase Unit execution time (1 LSB: 2 min.) *21
90 X’0000’ Enhanced Security Erase Unit execution time
(1 LSB: 2 min.)
91 (Variable) Advance power management level
92 (Variable) Master password revision
93 *17 Hardware configuration *17
94 (Variable) Acoustic Management level *22
95-99 X’0000’ Reserved
100-103 X’xx’ Total number of sectors accessible by users in the 48-bit LBA
mode
104-127 X’00’ Reserved
128 X’0xxx’ Security status *18
129-159 X’0000’ Undefined
160-254 X’0000’ Reserved
255 X’xxA5’ Check sum (The 2 complement of the lower order byte resulting
from summing bits 7 to 0 of word 0 to 254 and word 255, in
byte units.)
*1 Word 0: General configuration
Bit 15: ATA device = 0, ATAPI device = 1
Bit 14-8: Undefined
Bit 7: Removable disk drive = 1
Bit 6: Fixed drive = 1
Bit 5-3: Undefined
Bit 2: IDENTIFY DEVICE Valid = 0
Bit 1-0: Reserved
*2 Word 1, 3, 6, 60-61
MHR2040AT MHR2030AT MHR2020AT MHR2010AT
Word 01 X’3FFF’ X’3FFF’ X’3FFF’ X’3FFF’
Word 03 X’10’ X’10’ X’10’ X’10’
Word 06 X’3F’ X’3F’ X’3F’ X’3F’
Word 60-61 X’4A85300’ X’37E3E40’ X’2542980’ X’12BB230’