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CT2578-12-CG-F84 Datasheet(PDF) 10 Page - Aeroflex Circuit Technology |
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CT2578-12-CG-F84 Datasheet(HTML) 10 Page - Aeroflex Circuit Technology |
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10 / 7 page  RX CMD DATA DATA DATA * STATUS TX CMD DATA DATA DATA * STATUS DBC CMD * STATUS 10 SCDCT2578 REV B 3/11/98 Error Conditions Action taken by device Error Conditions Action taken by device 1. Invalid command. No response. Command ignored. 2. Non contiguous No status response. command words. Set message error. Sequence terminated. 3. Transmit command No status response. followed by another word Set message error. (excluding command Sequence terminated. word for RTA, in which case it will respond to the latest command). 4. Transmitting terminal No status response. does not respond with Set message error. status within 16 uS. Sequence terminated. 5. Incorrect terminal No status response. transmitting. Set message error. Sequence terminated. 6. Non contiguous data No status response. following status from Set message error. RTB. Sequence terminated equal to receive word Set message error. 7. Invalid data transmitted No status response. from RTB. Set message error. Sequence terminated. 8. Too few or too many No status response. data words. Set message error. Sequence terminated. WRAP AROUND The wrap around capability is for test purposes only. It will test for transfers to and from the Bus Controller without any sub system intervention. The wrap around sequence will commence on receipt of a valid receive command word containing the wrap around subaddress (1E) providing the WRAPEN input is set high. The data received is stored in the data buffer memory and the device will respond with status. The Bus Controller will then send a transmit command to subaddress 1E and the data contained in the memory will be transmitted following the status. For the test to operate correctly the number of data words to be transmitted must be the same as the number received. 1. Invalid receive command. No response. Command ignored. 2. Invalid data word. No status response. Set message error. Sequence terminated. 3. Non contiguous data. No status response. Set message error. Sequence terminated. 4. Too few or too many No status response. data words. Set message error. Sequence terminated 5. Invalid transmit No response. command. Command ignored. 6. Transmit command No status response. followed by another Set message error. word. Sequence terminated 7.Transmit Broadcast No status response. address. Set message error. Set broadcast. Sequence terminated. 8. Transmit word count not No data transmission. count. Sequence terminated. DYNAMIC BUS CONTROL (00) The device will respond with status. Error Conditions Action taken by device 1. Invalid command. No response. Command ignored. 2. Command followed by No status response. another word. Set message error. Sequence terminated. 3. T/R bit of command set No status response. to zero. Set message error. Sequence terminated 4. Broadcast address. No status response. Set message error. 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. |
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