Aim MIL-STD-1553 - Format 0

MIL-STD-1553 Reference Manual
342
Chapter 9 – Bus Monitor Functions
9.1.12.1.1 0 Format
Message Header (LS-Byte always first)
7 0
15 8
Message Status
LEN
Low Milli-Time
High Milli-Time
Micro-Time
Command Word
M
M
e
e
s
s
s
s
a
a
g
g
e
e
S
S
t
t
a
a
t
t
u
u
s
s
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
ERROR_INFO
0 (res)
STATUS_WORD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STATUS_WORD
E
E
R
R
R
R
O
O
R
R
_
_
I
I
N
N
F
F
O
O
Message Error Information
Value
Constant
Description
0
API_BM_MSG_NO_ERR
No error
1
API_BM_MSG_ERR_NO_RESP
Terminal no response error
2
API_BM_MSG_ERR_MANCH
Manchester coding error
3
API_BM_MSG_ERR_HBIT
High bit count error
4
API_BM_MSG_ERR_LBIT
Low bit count error
5
API_BM_MSG_ERR_PARITY
Parity error
6
API_BM_MSG_ERR_ISYNC
Inverted sync error
7
API_BM_MSG_ERR_GAP
Interword gap error
8
API_BM_MSG_ERR_BOTH_CHN
Transmission on both MILbus channels
9
API_BM_MSG_ERR_MODECODE
Reserved mode code error
10
API_BM_MSG_ERR_EARLY_RESP
Early response or gap too AiInt16
11
API_BM_MSG_ERR_BIT_SET
Message error bit set
12
API_BM_MSG_ERR_SW_EXCEPT
Status word exception error
13
API_BM_MSG_ERR_HCNT
High wordcount error
14
API_BM_MSG_ERR_LCNT
Low wordcount error
15
API_BM_MSG_ERR_ILLEGL
Illegal command word
S
S
T
T
A
A
T
T
U
U
S
S
_
_
W
W
O
O
R
R
D
D
Bit10 to Bit0 from Status Word of MILbus
L
L
E
E
N
N
Value
Description
1..32
Amount of Data Words following the Message Header
L
L
o
o
w
w
M
M
i
i
l
l
l
l
i
i
-
-
T
T
i
i
m
m
e
e
–
–
M
M
e
e
s
s
s
s
a
a
g
g
e
e
T
T
i
i
m
m
e
e
i
i
n
n
m
m
i
i
l
l
l
l
i
i
-
-
s
s
e
e
c
c
o
o
n
n
d
d
s
s
(
(
L
L
o
o
w
w
W
W
o
o
r
r
d
d
)
)
H
H
i
i
g
g
h
h
M
M
i
i
l
l
l
l
i
i
-
-
T
T
i
i
m
m
e
e
–
–
M
M
e
e
s
s
s
s
a
a
g
g
e
e
T
T
i
i
m
m
e
e
i
i
n
n
m
m
i
i
l
l
l
l
i
i
-
-
s
s
e
e
c
c
o
o
n
n
d
d
s
s
(
(
H
H
i
i
g
g
h
h
W
W
o
o
r
r
d
d
)
)
M
M
i
i
c
c
r
r
o
o
-
-
T
T
i
i
m
m
e
e
Value
Description
0..999
Message Time in micro-seconds
C
C
o
o
m
m
m
m
a
a
n
n
d
d
W
W
o
o
r
r
d
d
-
-
C
C
o
o
m
m
m
m
a
a
n
n
d
d
W
W
o
o
r
r
d
d
Message Data (LS-Byte always first)