Word 7 bit 4 is cleared to disable support for the Power-up in Standby feature set and has the effect of clearing bits 5 and 6 in words 83 and 86 and clearing the value in word 94 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. If Power-up in Standby has been enabled by a jumper, these bits shall not be cleared.

Word 7 bit 3 is cleared to disable support for the Security feature set and has the effect of clearing bit 1 in words 82 and 85 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. These bits shall not be cleared if the Security feature set has been enabled.

Word 7 bit 2 is cleared to disable support for the SMART error logging and has the effect of clearing bit 0 in words 84 and 87 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response.

Word 7 bit 1 is cleared to disable support for the SMART self-test and has the effect of clearing bit 1 in words 84 and 87 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response.

Word 7 bit 0 is cleared to disable support for the SMART feature set and has the effect of clearing bit 0 in words 82 and 85 of the IDENTIFY DEVICE or IDENTIFY PACKET DEVICE response. If bits 1 and 2 of word 7 are not cleared to zero or if the SMART feature set has been enabled by use of the SMART ENABLE OPERATIONS command, these bits shall not be cleared and the device shall return command aborted.

10.8.45.4.2.6Words 8-254: Reserved10.8.45.4.2.7Word 255: Integrity word

Bits 7:0 of this word shall contain the value A5h. Bits 15:8 of this word shall contain the data structure checksum. The data structure checksum shall be the two’s complement of the sum of all byte in words 0 through 254 and the byte consisting of bits 7:0 of word 255. Each byte shall be added with unsigned arithmetic, and overflow shall be ignored. The sum of all bytes is zero when the checksum is correct.

Toshiba Corporation Digital Media Network Company

Page 139 of 157

© 2005, Copyright TOSHIBA Corporation All Rights Reserved