TC6374AF datasheet(49/125 Pages) TOSHIBA

49 / 125 page

TC6374AF Hardware Datasheet

Rev. 1.22

02/2/15

TOTAL 125

PAGE NO. 49

8-5. General description of ATA COMMAND

8-5-1. STANDARD ATA COMMAND

8-5-1-1. CHECK POWER MODE - 98h, E5h

This command is used to check the current power mode in TC6374AF. If, when this command is issued, the

oscillation module is operating, TC6374AF sets BSY and Sector Count Register to ”FFh”. Then, BSY is

cleared and generates an interrupt. If the oscillation modules is in the oscillation stop state or the oscillation

stop timer is set, TC6374AF sets BSY and sets Sector Count Register to”00h”. Then, it clears BSY and

generates an interrupt.

Inputs

Bit

Features

N/A

Sector Count

N/A

Sector Number

N/A

Cylinder Low

N/A

Cylinder High

N/A

Device/Head

(1)

N/A

(1)

DEV

N/A

Command

98h or E5h

Note: Command code ”98h” is defined in ATA/ATAPI-5 standard as “Retired”, though, to maintain the

compatibility with previous specifications, TC6374AF will still support it.

Normal Outputs

Bit

Error

N/A

Sector Count

Result Value(00h or FFh)

Sector Number

N/A

Cylinder Low

N/A

Cylinder High

N/A

Device/Head

(1)

N/A

(1)

DEV

N/A

Status

BSY(0)

DRDY(1)

DF(0)

DSC(1)

DRQ(0)

CORR(0)

IDX(0)

ERR(0)

Sector Count Register = ”00h”

(if oscillation module is in the oscillation stop mode or ioscillation stop timer is

set)

Sector Count Register = ”FFh”

(if oscillation module is under operation)

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