Hitachi HTS543280L9A300 User Manual

 

                       5K320 SATA OEM Specification 

 

- 48 - 

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. 

 

Device Register 

7 

6 

5 

4 

3 

2 

1 

0 

- 

L 

- 

0 

HS3 

HS2 

HS1 

HS0 

Table  26 Device Register   

This register contains the device and head numbers.   

Bit Definitions 

  

L 

Binary 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. 

 

Error Register 

7 

6 

5 

4 

3 

2 

1 

0 

CR C 

UNC 

0 

IDNF 

0 

ABRT 

TK0NF 

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This bit is obsolete. 

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.