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TABLE1.
COMMAND SUMMARY
A. Commands for Models: 1791
Type Command
I
I
I
I
1
II
II
Itl
III
III
IV
Rastore
Seek
Step
Step-In
Step-out
Rsad Sector
WriteSector
RsadAddress
Read Track
Write Track
Force Interrupt
1792,1793,1794
7
6
J
0
}
0
)
0
3
1
3
1
t
0
1
0
1
1
1
1
5
0
0
1
0
1
0
1
0
1
1
0
4
0
1
T
T
T
m
m
0
0
1
1
Bits
3
h
h
h
h
h
S
S
0
0
0
13
2
V
V
V
V
V
E
E
E
E
E
>2
1
f1
n
C
C
0
0
0
h
0
ro
fO
fO
ro
ro
0
ao
0
0
0
<0
B.
•
(
(
(
(
Commanda for Models: 1795,1797
r
6
)
0
)
0
)
0
)
1
0
1
0
0
1
1
1
1
5
0
0
1
0
1
0
1
0
1
1
0
Bits
4
0
1
T
T
T
m
m
0
0
1
1
3
h
h
h
h
h
L
L
0
0
0
"3
2
V
V
V
V
V
E
E
E
E
E
12
1
M
M
ri
M
M
U
U
U
U
U
h
0
fO
ro
ro
ro
ro
0
ao
0
0
0
FLAG SUMMARY
TABLE Z FLAG SUMMARY
Command
Type
I
1
1
1
II
II
II & 111
II & III
II
II
II
IV
Bit
No(s)
0,1
2
3
4
0
1
1
2
3
3
4
0-3
r1 rO = Siepping Motor Rate
See Table 3 for Rate Summary
V = Track NumberVerifyFlag
h = Head Load Fiag
T = Track Update Flag
aO = Data Address Mark
C = Side Compare Flag
U = Update SSO
E= 15MSDelay
S = Side Compare Flag
L = Sector Length Flag
m = Multiple Record Flag
Oescription
V = O.Noverify
V = I.Verifyondestinatlontrack
h
= 1, Load head at beginnlng
h
= 0, Unload head at beginning
T = 0, No Update
T = 1, Update track register
a0=0,FB(DAM)
ao= I.FB(deletedDAM)
C = O.Disable side compare
C = 1, Enable side compare
U = O.Update SSO Io 0
U = I.Update SSO to 1
E =0,No15MSdelay
E =1,15MSd8lay
S = 0, Compare for side 0
S = 1, Compare for side 1
LSB's Sector Length in IO Field
00
01
10
11
L =0
256
512
1024
128
L = 1
128
256
512
1024
m = 0, Single record
m = 1, Multiple records
'x
= Interrupt Conditlon Flags
'0
= 1 Not Ready To Ready Transition
h
=1 Ready To Not Ready Transition
'2
=1 Index Pulse
'3
= 11mmediate Interrupt, Hequires A Reset
'3-'O
= 0 Terminale With No Interrupt (INTRQ)
' NOTE: See Type IV Command Description for further Information.
48
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