Check Status Packet

 

 

Check Status Packet

7

 

 

 

NOTE:

1.

Refer to Chapter 3.

 

Check Status Packet

The check status command ($60) senses a $00 test unit ready command to the device. The returned status is in the 4 status bytes (refer to Returned Status Command Table in Chapter 3).

The table below shows the check status packet.

Even Byte \

Odd Byte \

 

FC

 

B8

 

74

 

30

 

 

 

 

 

 

 

 

+$00

 

Controller LUN

 

 

Device LUN

 

 

 

 

 

+$02

 

Status Byte 0

 

Status Byte 1 (Note 1)

 

 

 

 

 

 

 

 

+$04

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$06

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$08

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$0A

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$0C

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$0E

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$10

 

0

 

0

0

 

0

 

 

 

 

 

 

 

 

+$12

 

0

 

0

0

 

0

 

 

 

 

 

 

 

+$14

 

0

 

0

Function Code (60)

 

 

 

 

 

 

 

 

+$16

 

Interrupt Level

 

 

Vector Number

 

 

 

 

 

+$18

 

Status Byte 2

 

Status Byte 3 (Note 1)

 

 

 

 

 

 

 

 

$00

 

00000000

 

 

 

Controller logical unit

 

 

 

 

 

 

number

$01

 

00000000

 

 

 

Device logical unit

 

 

 

 

 

 

number

7-65

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Image 145
Emerson MVME147 manual Check Status Packet