CT2578-02-CG-F84 AEROFLEX [Aeroflex Circuit Technology], CT2578-02-CG-F84 Datasheet
CT2578-02-CG-F84
Related parts for CT2578-02-CG-F84
CT2578-02-CG-F84 Summary of contents
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... Latched RT Address MIL-PRF-38534 Compliant Circuits Available STATUS REGISTER STATUS REGISTER COMMAND REGISTER LAST COMMAND REG REMOTE TERMINAL STATE SEQUENCER 1760 OPTIONS 32 WORD DATA MEMORY – Data Bus Modules For The Future © SCDCT2578 REV B 3/12/98 WORD COUNTER BIT REGISTER RT PROTOCOL CMD / HRD / DATA ...
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... GENERAL DESCRIPTION CT2578 is for use in simple Remote Terminal applications without the need for a processor or software development. It provides the complete protocol for a Remote Terminal, supporting all types of message transfers including all 15 mode codes, with comprehensive error checking. Error handling of data is not required by the subsystem. The user interface bit bidirectional highway with a few control lines ...
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... If the mode code has an associated data word, it will be available on T0-T15 at this time. If there is no associated data word, T0-T15 will be zero. SCDCT2578 REV B 3/11/98 DISCRETE RT STATUS INPUTS The following signals are inputs to set the appropriate bits in the Remote Terminals status word. All inputs are sampled after NVCR except non mode code receive commands in which case they are sampled after the last data word has been received ...
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... NCMDSTRB indicates valid message received, command word available on T0-T15. 4. Data words transferred from subsystem to 32 word data memory per word TRANSFER (RECEIVING TERMINAL) DATA BUS REC CMD TRAN CMD NVCR NHDR NDATA NCMDSTRB NDATAST T0-T15 1 SCDCT2578 REV B 3/11/98 DATA DATA STATUS DATA STATUS DATA 2 3 ...
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... When applicable T0-T15 1. Valid command word received, contents available on T0-T15 for illegalization purposes. Status must be valid within 600 nS. 2. Status register contents transferred to transmit buffer after message validation. 3. Vector word (when applicable) transferred from subsystem to transmit buffer. SCDCT2578 REV B 3/11/98 STATUS ...
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... Data words transferred from 32 word data memory to subsystem at 500 nS per word. MODE CODES WITHOUT DATA BROADCAST DATA BUS COMMAND NVCR NRES/NSYNC When applicable T0-T15 1. Valid command word received, contents available on T0-T15 for illegalization purposes. Status must be valid within 600 nS. 2. Synchronise mode command, T0-T15 = 0. SCDCT2578 REV B 3/11/98 DATA DATA STATUS DATA 2 3 ...
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... ME Message Error: set internally as a result of an error in the received message or set externally with a discrete pin to illegalize a message. INST Instrumentation: set to zero. SR Service Request: set with a discrete pin. SCDCT2578 REV B 3/11/98 DATA RESVD Reserved: set to zero BCST Broadcast Command Received: set internally. ...
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... SCDCT2578 REV B 3/11/98 The device will only consider a command word valid if the following conditions are met contains the correct sync field. ...
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... If the Busy bit of the Status is set the sequence will terminate after NCMDSTRB. SCDCT2578 REV B 3/11/98 The end of the NCMDSTRB will initiate the DMA cycle to transfer the data words from the data buffer memory to the subsystem. The first word received is enabled onto T0-T15 and the signal NDATAST is pulsed low ...
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... For the test to operate correctly the number of data words to be transmitted must be the same as the number received. SCDCT2578 REV B 3/11/98 DYNAMIC BUS CONTROL (00) The device will respond with status. STATUS ...
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... Sequence terminated. 5. T/R bit of command set No status response. to zero and broadcast Set message error. address Set broadcast. Sequence terminated. SCDCT2578 REV B 3/11/98 INITIATE SELF TEST (03) I.S.T * STATUS CMD The device will respond with status.. If the command was a broadcast the status transmission will be suppressed and the broadcast bit in the status register set. ...
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... T/R bit of command set No status response. to zero and broadcast Set message error. address Set broadcast. Sequence terminated. SCDCT2578 REV B 3/11/98 OVERRIDE INHIBIT TERMINAL FLAG (07 STATUS CMD The device will respond with status and then reactivate the Terminal Flag bit of the status register. ...
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... Sequence terminated. 5. T/R bit of command set No status response. to zero and broadcast Set message error. address Set broadcast. Sequence terminated. SCDCT2578 REV B 3/11/98 SYNCHRONIZE WITH DATA WORD (11) SYNC DATA * STATUS CMD The Synchronize data word received is stored in the data buffer memory until message validation is complete after which the device will respond with Status ...
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... Set broadcast. Sequence terminated. 5. T/R bit of command set No status response. to zero and broadcast Set message error. address Set broadcast. Sequence terminated. SCDCT2578 REV B 3/11/98 SELECTED TRANSMITTER SHUTDOWN (14) TX DIS DATA * STATUS CMD This mode command is not normally used in dual redundant systems. The device will respond with status and shut down the transmitter on the bus designated by the two least significant bits of the data word ...
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... No response. Command ignored. 4. Command not followed No status response. contiguously by data Set message error. word. Sequence terminated. 5. Command followed by No status response. too many data words. Set message error. Sequence terminated. SCDCT2578 REV B 3/11/98 DETAILED TIMING 1 NVCR 2 T0-T15 STATUS 5 NDATA NHDR 6 T0-T15 STATUS 1 ...
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... T0-T15 5 NENVW 6 T0-T15 1. NRES/NSYNC pulse duration 2. T0-T15 valid to NSYNC 3. NSYNC to T0-T15 invalid 4. NVCR to NRES/NSYNC non bcast NVCR to NRES/NSYNC bcast 5. NENVW to T0-T15 valid 6. NENVW to T0-T15 invalid 7. NENVW is reset by NVCR SCDCT2578 REV B 3/11/98 MIN MAX UNIT 16 MHZ CLOCK REQUIREMENT 10.0 uS 1.0 16 ...
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... Low level output current 2 OPEN DRAIN OUTPUT V High level output voltage OH V Low level output voltage OL I High level output current OH I Low level output current 2.0 OL SCDCT2578 REV B 3/11/98 E. Not Used +7 Volts F. INPUT OUTPUT 0 Volts +0.5 Volts -0.5 Volts ...
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... NILLCMD NSYNC F1 MCAIR G3 STATUS (-12 only) H2 NENCHK (-12 only) J2 NVCR J3 NTF L2 NME SCDCT2578 REV B 3/11/98 PGA IO TYPE N10 H M11 H L10 M12 ...
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... PACKAGE OUTLINE 119 Pin PGA REF SCDCT2578 REV B 3/11/98 DIMENSIONS (Inches) MIN NOM A 0.160 A1 0.040 0.050 b 0.016 0.018 D 1.280 E 1.280 e1 - 0.100 e - 1.200 L 0.110 0.130 19 MAX - 0.210 0.060 0.020 - 1.335 - 1.335 - - 0.150 ...
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... ADDRA 26 N/C 27 N/C 28 ADDRP 29 DATA 0 (BUS) 30 NDATA 0 (BUS) 31 N/C 32 N/C 33 N/C 34 VDD 35 VSS 36 C16MHZ 37 LA (-12 only) 38 NDATA 39 N/C 40 N/C 41 NRES 42 NSSTRB N not connect SCDCT2578 REV B 3/11/98 CQFP IO TYPE ...
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... Transmitter standby (both channels) 0.3 50% duty cycle (one channel) 100% duty cycle (one channel) POWER SUPPLY DECOUPLING To maximize stabilization of the devices transceivers, a 4.7 uf and a 0.1 uf capacitor should be connected in parallel from the +5V supply to ground. SCDCT2578 REV B 3/11/98 APPLICATION NOTES MAX UNIT CIRCUIT TO TRANSFER DATA FROM SUBSYSTEM mA 220 ...
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