Silicon Image SSD-P08G(I)-3521 manual Identify Drive Drive Attribute Data

ATA COMMAND BLOCK AND SET DESCRIPTION					SSD-PXXX(I)-3521 DATA SHEET
	Table 52: Identify Drive — Drive Attribute Data (Continued)
	Word	Data Default	Bytes	Data Description
	Address
	20	0002h	2	Buffer type
				•	0000h: Not specified
				• 0001h: A single-ported, single-sector
					buffer
				• 0002h: A dual-ported multisector buffer
				• 0003h: A dual-ported multisector buffer
					with a read caching
21	0002h	2	Buffer size in 512-byte increments
22	0004h	2	Number of ECC bytes passed on read/
				write long commands
23-26	XXXXh	8	Firmware revision (eight ASCII characters)
	27-46	XXXXh	40	Model number (40 ASCII characters)
47	0001h	2	7-0: Maximum number of sectors that can
				be transferred with a Read/Write Multiple
				command per interrupt
48	0000h	2	Double word (32 bit) not supported
49	0002h	2	•	11: IORDY supported
				•	9: LBA supported
				•	8: DMA supported
50	0000h	2	Reserved
51	0100h	2	15-8: PIO data transfer cycle timing
52	0000h	2	15-8: DMA data transfer cycle timing
53	0000h	2	• 1: Words 64-70 are valid
				• 0: Words 54-58 are valid
54	XXXXh	2	Current number of cylinders
55	XXXXh	2	Current number of heads
56	XXXXh	2	Current sectors per track
57-58	XXXXh	4	Current capacity in sectors
59	010Xh	2	7-0: Current sectors can be transferred
				with a Read/Write Multiple command per
				interrupt
60-61	XXXXh	4	Total number of sectors addressable in
				LBA mode
62	0000h	2	Single-word DMA modes supported

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3521P-02DSR PAGE 66 FEBRUARY 2, 2009