Emerson MVME147 manual Recover Buffer Data Packet

Models: MVME147

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Recover Buffer Data Packet

 

 

 

Recover Buffer Data Packet

$14

00000000

 

Reserved

$15

01010100

 

SCSI function ($54 =

 

 

 

load/unload)

$16

00000xxx

 

Interrupt level (7

 

 

 

through 0) (0 = polled

 

 

 

mode)

$17

xxxxxxxx

 

Vector number to use

 

 

 

upon return

$18

xxxxxxxx

 

Status from SCSI

 

 

 

firmware (byte 2)

 

 

 

(Note 1)

$19

xxxxxxxx

 

Status from SCSI

 

 

 

firmware (byte 3)

 

 

 

(Note 1)

NOTE:

 

1.

Refer to Chapter 3.

7

Recover Buffer Data Packet

The recover buffer data command ($14) is used to recover the data remaining in the controller’s buffer following an error while writing to tape. This command returns the data not yet written to tape. The data is read and put in the address specified.

The table below shows the recover buffer data packet.

Even Byte \

Odd Byte \

 

FC

 

B8

 

74

 

 

30

 

 

 

 

 

 

 

 

+$00

 

Controller LUN

 

 

Device LUN

 

 

 

 

 

+$02

 

Status Byte 0

 

Status Byte 1 (Note 1)

 

 

 

 

 

 

 

 

+$04

 

 

 

Memory Address (MSW)

 

 

 

 

 

 

 

 

 

+$06

 

 

 

Memory Address (LSW)

 

 

 

 

 

 

 

 

 

 

 

+$08

 

0

 

0

 

0

 

0

 

 

 

 

 

 

 

 

 

+$0A

 

0

 

0

 

0

 

0

 

 

 

 

 

 

 

 

 

7-61

Page 141
Image 141
Emerson MVME147 manual Recover Buffer Data Packet