UT1553 데이터 시트보기 (PDF) - Aeroflex UTMC
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UT1553 Datasheet PDF : 40 Pages
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CTL Bit Definitions - 1553B Mode
Bit 15
CHAEN [0] Channel A Enable. Same as 1553A mode. Disable for internal self-test.
Bit 14
CHBEN [0] Channel B Enable. Same as 1533A mode. Disable for internal self-test.
Bit 13
STEN [0]
Self-Test Enable. Same as 1553A mode.
Bit 12
STCS [0]
Self-Test Channel Select. Same as 1553A mode.
Bit 11
IM1 [0]
Interrupt Mask One. Same as 1553A mode.
Bit 10
IM2 [0]
Interrupt Mask Two. Same as 1553A mode.
Bit 9
INSTR [0]
Instrumentation Bit. When INSTR = 1, the RTMP’s 1553 status word response has the Instru-
mentation bit set. This bit remains set until INSTR is set to 0.
Bit 8
SVREQ [0]
Service Request Bit. When SVREQ = 1, the RTMP’s 1553 status word response has the Service
Request bit set. This bit remains set until SVREQ is set to 0.
Bit 7
N/A
This bit is defined as a reserved bit in MIL-STD-1553B and is not used. Setting this bit has no
effect on the status word response.
Bit 6
N/A
Same as bit 7.
Bit 5
N/A
Same as bit 7.
Bit 4
BDCST [0]
Broadcast Bit. When BDCST = 1, the RTMP’s 1553 status word response has the Broadcast bit
set. Manual override; not cleared by receipt of next command. Broadcast bit in outgoing status
word is set to a logical one on the receipt of broadcast command.
Bit 3
BUSY [0]
Busy Bit. When BUSY = 1, the RTMP’s 1553 status word response has the Busy bit set. This bit
remains set until is set to 0.
Bit 2
SFLG [0]
Subsystem Flag. When SFLG = 1, the RTMP’s 1553 status word response has the Subsystem
Flag bit set. This bit remains set until SFLG is set to 0.
Bit 1
N/A
Same as bit 7.
Bit 0
TFLG [0]
Terminal Flag. Same as 1553A mode.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
C C SS I I S SS SS S S SS T
H H T T M M W W W WW WW W W F
A B EC 1 2 B B B B B BB BB L
E E NS
1 1 1 11 11 11 G
NN
0 1 2 34 56 78
MSB
LSB
Figure 6. The Control Register in 1553A Mode
15 14 1312 11 10 9 8 7 6 5 4 3 2 1 0
C C SS I I I S N NN BB SN T
H H TT MMN V / / / DU F / F
A B EC 1 2 S RA AA C S LA L
E E NS
TE
S YG G
NN
RQ
T
MSB
LSB
Figure 7. The Control Register in 1553B Mode
RTMP-14
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