Hitachi HTS543280L9A300, HTS543212L9SA00 manual Device Register, Error Register, Features Register

	5K320 SATA OEM Specification
Bit Definitions
S RST (RST)	Software Reset. The device is held reset when RST=1. Setting RST=0 reenables the device.
	The host must set RST=1 and wait for at least 5 microseconds before setting RST=0, to
	ensure that the device recognizes the reset.
-IEN	Interrupt Enable. When IEN=0, and the device is selected, device interrupts to the host will
	be enabled. When IEN=1, or the device is not selected, device interrupts to the host will be
	disabled.

11.4 Device Register

Device Register

7

-

6

L

5

-

4

0

3

HS3

2

HS2

1	0
HS1	HS0

Table 26 Device Register

This register contains the device and head numbers.

Bit Definitions

LBinary encoded address mode select. When L=0, addressing is by CHS mode. When L=1, addressing is by LBA mode.

HS3,HS2,HS1,HS0 The HS3 through HS0 contain bits 24-27 of the LBA. At command completion, these bits are updated to reflect the current LBA bits 24-27.

11.5 Error Register

Error Register

7

CRC

6

UNC

5

0

4

IDNF

3

0

2

ABRT

1

TK0NF

0

AMNF

Table 27 Error Register

This register contains status from the last command executed by the device, or a diagnostic code.

At the completion of any command except Execute Device Diagnostic, the cont ents of this register are valid always even if ERR=0 in the Status Register.

Following a power on, a reset, or completion of an Execute Device Diagnostic command, this register contains a diagnostic code. See “Table 31 Diagnostic Codes” on Page 52 for the definition.

Bit Definitions
ICRCE (CRC)	Interface CRC Error. CRC=1 indicates a CRC error has occurred on the data bus during a
	Ultra -DMA transfer.
UNC	Uncorrectable Data Error. UNC=1 indicates an uncorrectable data error has been
	encountered.
IDNF (IDN)	ID Not Found. IDN=1 indicates the requested sector’s ID field could not be found.
ABRT (ABT)	Aborted Command. ABT=1 indicates the requested command has been aborted due to a
	device status error or an invalid parameter in an output register.
TK0NF (T0N)	Track 0 Not Found. T0N=1 indicates track 0 was not found during a Recalibrate command.
AMNF (AMN)	Address Mark Not Found. AMN=1 indicates the data address mark has not been found after
	finding the correct ID field for the requested sector.
	This bit is obsolete.

11.6 Features Register

This register is command specific. This is used with the Set Features command, S.M.A.R.T. Function Set command and Format Unit command.

- 48 -