Samsung spinpoint v40, 3.5" hard disk drives manual Command set supported

DISK DRIVE OPERATION

Table 6-6IDENTIFY DEVICE information (continued)

Word	Content	Description
		Command set supported.
		15	(=0) Reserved
		14	(=1) NOP command supported
		13	(=1) READ BUFFER command supported
		12	(=1) WRITE BUFFER command supported
		11	(=0) Reserved
		10	(=1) Host Protected Area feature set supported
82	7469h	9	(=0) DEVICE RESET command supported
		8	(=0) SERVICE interrupt supported
		7	(=0) release interrupt supported
		6	(=1) look-ahead supported
		5	(=1) write cache supported
		4	(=0) supports PACKET Command feature set
		3	(=1) supports Power Management feature set
		2	(=0) supports Removable Media feature set
		1	(=0) supports Security Mode feature set
		0	(=1) supports SMART feature set
		Command sets supported.
		15-14	(=01) Word 83 is valid
		13-5	(=0) Reserved
83	4000h	4	(=0) Removable Media Status Notification feature set supported
		3	(=0) Advanced Power Management feature set supported
		2	(=0) CFA feature set supported
		1	(=0) READ/WRITE DMA QUEUED supported
		0	(=0) DOWNLOAD MICROCODE command supported
84	4000h	Command set/feature supported extension.
		15-14	(=01) Word 84 is valid
		13-0	(=0) Reserved
		Command set/feature enabled. (The default manufacturing setting is as below)
		15	(=0) Reserved
		14	(=1) NOP command enabled
		13	(=1) READ BUFFER command enabled
		12	(=1) WRITE BUFFER command enabled
		11	(=0) Reserved
		10	(=1) Host Protected Area feature set enabled
85	7468h	9	(=0) DEVICE RESET command enabled
		8	(=0) SERVICE interrupt enabled
		7	(=0) Release interrupt enabled
		6	(=1) Look-ahead enabled
		5	(=1) Write cache enabled
		4	(=0) PACKET Command feature set enabled
		3	(=1) Power Management feature set enabled
		2	(=0) Removable Media feature set enabled
		1	(=0) Security Mode feature set enabled
		0	(=0) SMART feature set enabled

(continued)

60 SpinPoint V40 Product Manual