Aim MIL-STD-1553 - Page 278

MIL-STD-1553 Reference Manual
264
Chapter 7 – Bus Controller Functions
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3
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C
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t
Number of service requests detected
This value is only available, if Service Request / Vector Word mechanism is enabled with the
functions ApiCmdBCIni() and ApiCmdBCXferDef().
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1
1
Reserved (0)
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2
2
Reserved (0)
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3
3
2
2
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3
3
Reserved (0)
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3
3
2
2
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4
4
Reserved (0)
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3
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2
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W
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Status Queue control word
Bit 31
Bit 30
Bit 29
Bit 28
Bit 27
Bit 26
Bit 25
Bit 24
reserved
BUF_STAT
reserved
Bit 23
Bit 22
Bit 21
Bit 20
Bit 19
Bit 18
Bit 17
Bit 16
reserved
RBUS
ERR
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
CMD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CMD
B
B
U
U
F
F
_
_
S
S
T
T
A
A
T
T
Buffer Status
Value
Constant
Description
0
API_BUF_NOT_USED
Buffer not used
1
API_BUF_FULL
Buffer full
2
API_BUF_EMPTY
Buffer empty
3
reserved
R
R
B
B
U
U
S
S
Received Bus Flag
Value
Constant
Description
0
API_RCV_BUS_SECONDARY
Secondary Bus
1
API_RCV_BUS_PRIMARY
Primary Bus
E
E
R
R
R
R
_
_
R
R
E
E
P
P
O
O
R
R
T
T
Error Report Field
Value
Constant
Description
0
API_BC_REPORT_NO_ERR
No error
1
API_BC_REPORT_ERR_FRAME_COD
Coding or Framing error
2
API_BC_REPORT_ERR_SW1_NOT_RCV
Status Word 1 not received
3
API_BC_REPORT_ERR_SW2_NOT_RCV
Status Word 2 not received
4..15
reserved
C
C
M
M
D
D
Command Word