Hitachi C4K60 Specifications - Page 60

Table 7.6 DEVICE CONFIGURATION SET command Data Structure(Continued) Word Description 7 Command Set / Feature Set Supported bit 15 - 13 0 = Reserved bit 12 1= SMART selective self-test supported Bit 12 is cleared to select no support for SMART selective self-test feature set bit 11 1 = Forced unit access feature set supported Bit 11 is cleared to select no support for Forced unit access feature set bit 10 - 9 0 = Reserved bit 8 1= 48-bit Addressing feature set supported Bit 8 is cleared to select no support for 48-bit Addressing feature set bit 7 1 = Host Protected Area feature set supported Bit 7 is cleared to select no support for the Host Protected Area feature set. If a host protected area has been established by use of a SET MAX ADDRESS command or a SET MAX ADDRESS EXT command, the device returns command aborted. bit 6 - 4 0 = Reserved bit 3 1 = Security feature set supported Bit 3 is cleared to select no support for the Security feature set This These bits shall not be cleared if the Security feature set has been enabled. bit 2 1 = SMART error log supported Bit 2 is cleared to select no support for the SMART error logging bit 1 1 = SMART self-test supported Bit 1 is cleared to select no support for the SMART self-test bit 0 1 = SMART feature set supported Bit 0 is cleared to select no support for the SMART feature set If bits 1, 2 and 12 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 returns command aborted. 8 - 254 Reserved 255 Integrity word bit 15 - 8 Checksum The 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. bit 7 - 0 Signature Code Bits 7:0 of this word shall contain the value A5h. K6610170 Rev.2 Dec 22, 2004 - 60 -