HP 9845B/C CE Service Manual

ID Triggered Read
Type:
Purpose:
HP 9895A Disc Memory Command Set A-41
Disc read.
ID triggered read is used to read a sector of which the ID
field carmot be found or read correctly. As an example, if
the status from a read indicates that the target address
sector is not found, the ID triggered read would be used to
locate and trigger off of the previous sector's ID field to
read the target sector. The host processor must be aware of
the
sector interleaving to request the correct sector to trig-
ger from (see Format).
NOTE
ID triggered read is only supported for HP format and uses buf-
fered protocol.
Descri pti on:
HP-IB
Sequence:
Request ID Triggered Read
ATN
ATN EOI
ATN
P P
(OI~DDRSI
P1101011
P 00110
UUUU
1
P
r POI11I11I
I Secondary I
D
Opcode I
E
Primary
Unit
Unlisten
Listen
Send Data
ATN
ATN
EOI ATN
P P
rOI~DDRSI
I P1100000
P P
I
PIOI1111I
Secondary I
D
E
Primary
-
Up to 1 Sector Data ~
Untalk
Talk
Status:
See Buffered Read.
Requirements for Execution:
Disc must
be in HP format. See Buffered Read.

HP 9845B/C CE Specifications

General

Brand	HP
Model	9845B/C CE
Category	Storage
Language	English