Hitachi HDS723020BLA642 manual Read Log Ext2Fh, Read Log Ext Command 2Fh, Log address definition

7K200 SATA OEM Specification

14.16Read Log Ext(2Fh)

	Command Block Output Registers																								Command Block Input Registers
	Register					7		6				5		4			3		2			1	0		Register					7			6	5		4	3			2	1			0
	Data Low				-		-				-		-			-		-			-		-		Data Low					-		-		-		-	-		-		-		-
	Data High				-		-				-		-			-		-			-		-		Data High					-		-		-		-	-		-		-		-
	Feature		Current			-		-				-		-			-		-			-	R-		Error									...See Below...
			Previous			-		-				-		-			-		-			-	-
	Sector Count		Current			V			V			V		V			V		V			V	V		Sector Count			HOB=0		-			-	-		-	-			-	-			-
			Previous			V			V			V		V			V		V			V	V					HOB=1		-			-	-		-	-			-	-			-
	LBA Low		Current			V			V			V		V			V		V			V	V		LBA Low			HOB=0		-			-	-		-	-			-	-			-
			Previous			-		-				-		-			-		-			-	-					HOB=1		-			-	-		-	-			-	-			-
	LBA Mid		Current			V			V			V		V			V		V			V	V		LBA Mid			HOB=0		-			-	-		-	-			-	-			-
			Previous			V			V			V		V			V		V			V	V					HOB=1		-			-	-		-	-	-			-			-
	LBA High		Current		-		-				-		-			-		-			-		-		LBA High			HOB=0		-		-		-		-	-		-		-		-
			Previous		-		-				-		-			-		-			-		-					HOB=1		-		-		-		-	-		-		-		-
	Device				-		-				-		-			-		-			-		-		Device					-		-		-		-	-		-		-		-
	Command				0		0				1		0			1		1			1		1		Status									...See Below...
				Error Register																									Status Register
7		6	5	4	3					2					1					0				7		6	5		4		3				2			1				0
	CRC	UNC	0	IDN	0				ABT					T0N					AMN					BSY		RDY	DF		DSC	DRQ				COR			IDX				ERR
	V	V	0	V	0						V				0					0				0		V	0		V		-				0			0				V

Table 71 Read Log Ext Command (2Fh)

This command returns the specified log to the host. The device shall interrupt for each DRQ block transferred.

Output Parameters To The Device
R		Phy Event Counter Reset bit.	When Log address is 11h (Phy Event Counter) and this
		bit is set to 1, all Phy Event Counter values are reset to 0 after sending the current
		counter valules.
Sector Count Current		The number of sectors to be read from the specified log low order, bits (7:0). The log
		transferred by the drive shall start at the sector in the specified log at the specified
		offset, regardless of the sector count requested.
Sector Count Previous		The number of sectors to be read from the specified log high orders, bits (15:8).
LBA Low Current		The log to be returned as described in the following table.
LBA Mid Current		The first sector of the log to be read low order, bits (7:0).
LBA Mid Previous		The first sector of the log to be read high order, bits (15:8).
Log	Content			Feature set		Type
address
00h	Log directory			N/A		Read Only
03h	Extended Comprehensive		SMART	SMART	error	Read Only
	error log			logging
07h	Extended SMART self-test log			SMART self-test		Read Only
10h	Command Error			Native	Command	Read Only
				Queuing
11h	Phy Event Counter			Phy Event Counter		Read Only
80h-9Fh	Host vendor specific			SMART		Read/Wri
						te
Table 72 Log address definition

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