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參數(shù)資料
| 型號： | CT2565-201-2 |
| 廠商： | Aeroflex Inc. |
| 英文描述： | CT2565 Bus Controller, Remote Terminal and BUS Monitor FOR MIL-STD-1553B |
| 中文描述： | CT2565總線控制器，遠程終端和總線監(jiān)測的MIL - STD - 1553B總線 |
| 文件頁數(shù)： | 11/31頁 |
| 文件大?。?/td> | 356K |
| 代理商： | CT2565-201-2 |
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Aeroflex Circuit Technology
11
SCDCT2565 REV B 8/10/99 Plainview NY (516) 694-6700
CMD
RT
A
P
STAT
RT
A
P DATA
LCMD
P
CTL
CMD
LOOP
STAT
LCMD
EOM
(57)
900ns
5.0±0.5μs
INCMD
(9)
LWORD (29)
D0 - D15
1553 BUS
BUSREQ
(19)
ADRINC
(49)
80/166ns
70/80μs
400/500ns
Figure 10 – BC Mode Code Transmit Last Command (10010) Timing
CMD
RT
A
P
CTL
CMD
LOOP
STAT
EOM
(57)
900ns
INCMD
(9)
LWORD (29)
D0 - D15
1553 BUS
BUSREQ
(19)
ADRINC
(49)
80/166ns
50/80μsec
400/500ns
Figure 11 – BC Mode Code Transmit Status Word (00010) Timing
STAT
RT
A
P
40/60μsec
Notes:
All timing is typical unless otherwise noted.
RTU Operation
Each RTU is assigned a unique address on the
1553 bus. It processes commands issued by the
BC to its address or through Broadcast
commands.
Upon receipt of a valid command in the RTU
mode, the CT2565 will attempt to (1) transfer
1553 data received to the subsystem, (2) read
data from the subsystem for transmission on the
1553 bus, (3) transmit status information to 1553,
or (4) set status conditions. All data block
transfers are accompanied by a 1553 Status
Word. Figure 12 details a RTU single message
transfer.
RTU Address
RTU Address pins 33-34 and 72-74 and Address
Parity pin (odd parity) should be programmed to
a unique RTU (1553) address. These inputs
have internal pull-ups and will default a high state
if left unconnected. The CT2565 will not respond
if odd parity is compromised (See Error
Handling).
RTU Initialization
Initialize the CT2565 as an RTU per Table 2.
Upon receipt of valid command word from the
serial bus (RTU addressed or broadcast CMD),
the CT2565 will pulse NBGRNT (New Bus Grant)
pin 42 low.
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