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CT2561-FP View Datasheet(PDF) - Aeroflex Corporation

Part Name
Description
Manufacturer
CT2561-FP Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
Table 1A – Pin Function Table (78 Pin Plug-In)
Pin #
Symbol
I/O
Description
1
RT/BC
I Mode Select input - logic "1" for RT mode, logic “0” for BC mode.
2
MT
I Monitor mode enable. When unit is operating as a BC, a logic “0” will select
monitor mode.
3
STATEN
O Output signal in RT mode that indicates status word is being transferred on the
internal bus.
4
TIMEOUT O Indicates No Response Timeout has occurred during BC and RTU (RT to RT
transfer).
5
HSFAIL
O Output in RT mode indicating the DMA transfer did not occur in time to allow
proper operation on the 1553 bus.
6
DBACCEPT I Input signal used to set DBACCEPT bit in status register for response to a valid
mode command on the 1553 bus.
7
SSFLAG
I Input which controls the SSFLAG bit in the status register.
8
SVCREQ
I Input which controls the service request bit in the status word.
9
INCMD
O Output signal indicating the RT is currently in a message transfer sequence.
10
SSER
I Input which controls the subsystem error bit in the status register.
11
TESTOUT
- Factory test point. Do not connect.
12
WC1
O WC bit 1 - latched output of command word.
13
WC3
O WC bit 3 - latched output of command word.
14
TXINH B
O Transmitter inhibit output for channel B.
15
T/R
O Output indicating T/R bit of current command word in RT mode.
16
CHA/CHB O Output indicating current selected channel (0 = Channel A).
17
CS
O Chip Select output for subsystem memory control.
18
OE
O Output Enable output for subsystem memory control.
19
BUSREQ
O Output signal used to initiate transfer to/from subsystem.
20
+5V
I +5 Volt DC input.
21
DB0(LSB) I/O Least significant bit - 16 bit parallel data bus.
22
DB2
I/O Bit 2 of data bus.
23
DB4
I/O Bit 4 of data bus.
24
DB6
I/O Bit 6 of data bus.
25
DB8
I/O Bit 8 of data bus.
26
DB10
I/O Bit 10 of data bus.
27
DB12
I/O Bit 12 of data bus.
28
DB14
I/O Bit 14 of data bus.
Aeroflex Circuit Technology
3
SCDCT2561 REV A 8/16/99 Plainview NY (516) 694-6700
 

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