Fujitsu MCJ3230AP manual Device parameter information 1/6

4.5 ATA Commands

The transfer byte length is 512 bytes.

One-word information uses DD15 as MSB (Most Significant Bit) and DD0 as LSB (Least Significant Bit).

For ASCII character information such as base serial number, firmware version number, and product number, the first character code in the string uses word 1, DD15 to 8; the second character code uses word 1, DD7 to 0; the third character code uses word 2, DD15 to 8; and so on.

Table 4.27 Device parameter information (1/6)

Word	Value	Bits	Description
0	80C0h		General configuration information
		15-14	Protocol type (10b = ATAPI device)
		13	Reserved
		12-8	Device type 00000b = Direct access unit
		7	Replaceable media device 1b
		6-5	CMD DRQ type (10b = Accelerated DRQ)
		4-2	Reserved
		1-0	Command packet size (B'00' = 12 bytes)
1-9	0000h		Reserved
10-19	"xxx...xxx"		Base serial number
			(Left justified, ASCII codes)
20-22	0000h		Reserved
23-26	"aaab"		Firmware version number
			aaa: Major level version number (000 - 999)
			b: Minor level version number (0 - 9, a - z, and A - Z)
			(Left justified, ASCII codes, blank indicating space character)
27-46	“FUJITSU		Product number
	MCJ3230AP”		(Left justified, ASCII codes, blank indicating space character)
47-48	0000h		Reserved
49	0F00h	15	Interleave DMA transfer supported (0b)
		14	Command queing supported (0b)
		13	Overlap function supported (0b)
		12	Reserved (0b)
		11	IORDY supported (1b)
		10	IORDY can be disabled (1b)
		9	LBA mode supported (1b)
		8	DMA transfer mode supported (1b)
		7-0	Unused (0b)

C156-E205-01EN 4-27