Samsung M8 manual Identify Device information, Content Description

Some parameters are defined as a string of ASCII characters. For the string “Copyright,” the character ‘C’ is the first byte, ‘o’ is the 2nd byte, etc. When such fields are transferred, the order of transmission is:

1st character (‘C’) is on bits DD15 through DD8 of the first word

2nd character (‘o’) is on bits DD7 through DD0 of the first word

3rd character (‘p’) is on bits DD15 through DD8 of the second word

4th character (‘y’) is on bits DD7 through DD0 of the second word, etc.

Table 8-5 IDENTIFY DEVICE information

Word	Content			Description
		General configuration bit-significant information:
		15	0=ATA device, set to 0
		14-8	Retired
		7	1=removable media device,	set to 0
0	0040h	6	1=not removable controller and/or device, set to 1
		5-3	Retired
		2	Reserved
		1	Retired
		0	Reserved
1	XXXXh	Number of logical cylinders
2	0	Reserved
3	00XXh	Number of logical heads
4-5	0	Retired
6	003Fh	Number of logical sectors per logical track
7-8	0	Reserved for CFA
9	0	Retired
10-19		Serial number (20 ASCII characters,		0 = not specified)

200000h Retired

214000h Retired

220004h Number of ECC bytes (Device native length is selected via set feature command.)

23-26		Firmware revision (8 ASCII characters)
27-46		Model number (40 ASCII characters)
		15-8	80h
47	8010h	7-0	Maximum number of sectors that shall be transferred per interrupt on
			READ/WRITE MULTIPLE commands
48	4000h	Reserved
		Capabilities
		15-14	Reserved
		13	1=Standby timer values as specified in this standard are supported
			0=Standby timer values shall be managed by the device
		12	Reserved
49	2F00h	11	1=IORDY supported
			0=IORDY may be supported
		10	1=IORDY may be disabled
		9	LBA supported
		8	DMA supported
		7-0	Retired

504000h Capabilities

510200h PIO data transfer cycle timing mode (Obsolete)

520200h DMA data transfer cycle timing mode (Obsolete)

53	0007h	15-3	Reserved
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