Aim MIL-STD-1553 - Page 232

MIL-STD-1553 Reference Manual
218
Chapter 7 – Bus Controller Functions
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1
1
6
6
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Buffer Header ID
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8
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Bit
Value
Constant
Description
7..6
0
reserved for Service Request / Vector Word
handling
5..2
0
reserved
1..0
0
1
2
API_BC_TYPE_BCRT
API_BC_TYPE_RTBC
API_BC_TYPE_RTRT
BC to RT transfer type
RT to BC transfer type
RT to RT transfer type
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Transfer Channel
Value
Constant
Description
0
API_BC_XFER_BUS_PRIMARY
Primary Bus
1
API_BC_XFER_BUS_SECONDARY
Secondary Bus
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8
x
x
m
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r
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Value
Description
0..31
RT Address of transmitting terminal
(31 = broadcast RT address)
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8
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r
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Value
Description
0..31
RT Address of receiving terminal
(31 = broadcast RT address)
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8
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Value
Description
0..31
Subaddress of transmitting terminal
(0, 31 = Mode code Subaddress)
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8
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s
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Value
Description
0..31
Subaddress of receiving terminal
(0, 31 = Mode code Subaddress)
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8
w
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Value
Description
0
Word Count / Mode code field for Command Word is 32
1..31
Word Count / Mode code field for Command Word
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Transfer Interrupt Control
Value
Constant
Description
0
API_BC_TIC_NO_INT
No Interrupt
1
API_BC_TIC_INT_ON_XFER_END
Interrupt on End of Transfer
2
API_BC_TIC_INT_ON_XFER_ERR
Interrupt on Transfer Error
3
API_BC_TIC_INT_ON_STAT_EXCEPT
Interrupt on Status Word Exception
4..7
API_BC_TIC_NO_INT
Reserved
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8
8
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l
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BC Halt Control
Value
Constant
Description
0
API_BC_HLT_NO_HALT
Do not halt on exception
1
API_BC_HLT_HALT_ON_XFER_ERR
Reserved for Halt on Transfer Error
2
API_BC_HLT_HALT_ON_STAT_EXCEPT
Reserved for Halt on Status Word
Exception
3
API_BC_HLT_HALT_ON_ERR_EXCEPT
Reserved for Halt on Transfer Error
and Status Word Exception
4
API_BC_HLT_HALT_ON_ANY_INT
Halt on any Interrupt
5..7
Reserved