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SCSI PACKETS
7-66
7
Open Packet
The open packet is a read of the first blocks of a device. This command is
intended as a "safe" read that won’t overrun the byte count when the block size
of the device is unknown.
$02 xxxxxxxx Status from SCSI
firmware (byte 0)
(Note 1)
$03 xxxxxxxx Status from SCSI
firmware (byte 1)
(Note 1)
$04 00000000 00000000 Reserved
$06 00000000 00000000 Reserved
$08 00000000 00000000 Reserved
$0A 00000000 00000000 Reserved
$0C 00000000 00000000 Reserved
$0E 00000000 00000000 Reserved
$10 00000000 00000000 Reserved
$12 00000000 00000000 Reserved
$14 00000000 Reserved
$15 00101100 SCSI function ($60 =
erase
$16 000000xx 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.