Aim MIL-STD-1553 - Page 279

MIL-STD-1553 Reference Manual
265
Chapter 7 – Bus Controller Functions
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W
W
o
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r
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d
d
s
s
Last received Status Word on Command Word
Bit 31
Bit 30
Bit 29
Bit 28
Bit 27
Bit 26
Bit 25
Bit 24
reserved
Bit 23
Bit 22
Bit 21
Bit 20
Bit 19
Bit 18
Bit 17
Bit 16
reserved
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
STATUS_WORD
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
STATUS_WORD
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r
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Actual data buffer address relative to the start of the Global RAM
Bit 31
Bit 30
Bit 29
Bit 28
Bit 27
Bit 26
Bit 25
Bit 24
BUF_PTR
Bit 23
Bit 22
Bit 21
Bit 20
Bit 19
Bit 18
Bit 17
Bit 16
BUF_PTR
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
BUF_PTR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BUF_PTR
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32-bit Time Tag Word
Bit 31
Bit 30
Bit 29
Bit 28
Bit 27
Bit 26
Bit 25
Bit 24
MINUTES_OF_HOUR (0..59)
SEC_OF_MIN
Bit 23
Bit 22
Bit 21
Bit 20
Bit 19
Bit 18
Bit 17
Bit 16
SEC_OF_MINUTE (0..59)
MICROSEC_OF_SEC
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
MICROSEC_OF_SEC (0..999999)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
MICROSEC_OF_SEC (0..999999)
Return Value
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6
6
All API functions return API_OK if no error occurred. If the return value is not equal
to API_OK the function ApiGetErrorDescription can be used to obtain an error
description.
Note: ‘msg_cnt’, ‘err_cnt’, ‘lvw’ and ‘srvreq_cnt’ are cleared on restart of the AIM
board Bus Controller when the ApiCmdBCStart’ function is called.