Aim MIL-STD-1553 - Format 4

MIL-STD-1553 Reference Manual
346
Chapter 9 – Bus Monitor Functions
9.1.12.1.5 Format 4
Format 4 output is provided when the user is recording BM data while in either the Standard
Capture mode, Selective Capture Mode or Recording Mode. Format 4 output is to be used
when not in Message Filter Recording mode (ApiCmdBMCapMode ‘cap_mode’ not equal to
3 (API_BM_CAPMODE_FILTER)) In addition the ApiCmdBMIniMsgFltRec should not be
used.
Message Header (LS-Byte always first)
7 0
15 8
Message Status
LEN
TimeTag High (LOW)
TimeTag High (HIGH)
TimeTag Low (LOW)
TimeTag Low (HIGH)
First Command Word
Second Command Word (for RTRT transfer)
First Status Word
Second Status Word (for RTRT Transfer)
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
BUS
reserved
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
reserved
E
E
R
R
R
R
O
O
R
R
_
_
I
I
N
N
F
F
O
O
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
B
B
U
U
S
S
Value
Description
1
Primary Bus
0
Secondary Bus
L
L
E
E
N
N
Value
Description
1..32
Amount of Data Words following the Message Header