4.5 ATA Commands

4.5 ATA Commands

Table 4.17 lists supported ATA commands.

This section represents ODD registers as shown below.

Cylinders High/Low registers: CY

Sector register: SC

Device/Head register: DH

Sector Number register: SN

Features register: FR

Table 4.17 Command codes and parameters

Protocol

Command name

Command

 

Parameters used

 

Section

 

 

code

 

 

 

 

 

 

 

 

FR

SC

SN

CY

DH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ND

CHECK POWER MODE

E5h

 

y

 

 

D

4.5.1

 

 

 

 

 

 

 

 

 

ND

DEVICE RESET

08h

 

 

 

 

D

4.5.2

 

 

 

 

 

 

 

 

 

ND

EXECUTE DEVICE

90h

 

 

 

 

D*

4.5.3

 

DIAGNOSTIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ND

FLUSH CACHE

E7h

 

y

y

y

D

4.5.4

 

 

 

 

 

 

 

 

 

ND

GET MEDIA STATUS

DAh

 

 

 

 

D

4.5.5

 

 

 

 

 

 

 

 

 

PI

IDENTIFY PACKET DEVICE

A1h

 

 

 

 

D

4.5.6

 

 

 

 

 

 

 

 

 

ND

IDLE IMMEDIATE

E1h

 

 

 

 

D

4.5.7

 

 

 

 

 

 

 

 

 

ND

NOP

00h

 

 

 

 

y

4.5.8

 

 

 

 

 

 

 

 

 

PACKET

A0h

y

y

y

y

D

4.5.9

 

 

 

 

 

 

 

 

 

ND

SET FEATURES

EFh

y

y

 

 

D

4.5.10

 

 

 

 

 

 

 

 

 

ND

SLEEP

E6h

 

 

 

 

D

4.5.11

 

 

 

 

 

 

 

 

 

ND

STANDBY IMMEDIATE

E0h

 

 

 

 

D

4.5.12

 

 

 

 

 

 

 

 

 

∀∀

RESERVED: Other codes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes:

 

 

 

 

 

 

 

1.y - This register contains parameters effective to run the command.

D - Indicates that only the Device parameter is effective and the LUN parameter is ineffective.

D* - Device 0 is addressed, but both devices execute the command.

2.The protocol above indicates the command protocol used.

C156-E205-01EN

4-21

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Fujitsu MCJ3230AP manual ATA Commands, Command codes and parameters