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DS2153Q Datasheet(PDF) 20 Page - Dallas Semiconductor |
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DS2153Q Datasheet(HTML) 20 Page - Dallas Semiconductor |
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20 / 52 page ![]() DS2153Q 20 of 52 SR1: STATUS REGISTER 1 (Address=06 Hex) (MSB) (LSB) RSA1 RDMA RSA0 RSLIP RUA1 RRA RCL RLOS SYMBOL POSITION NAME AND DESCRIPTION RSA1 SR1.7 Receive Signaling All 1s. Set when the contents of timeslot 16 contains less than three 0s over 16 consecutive frames. This alarm is not disabled in the CCS signaling mode. RDMA SR1.6 Receive Distant MF Alarm. Set when bit 6 of timeslot 16 in frame 0 has been set for two consecutive multiframes. This alarm is not disabled in the CCS signaling mode. RSA0 SR1.5 Receive Signaling All 0s. Set when over a full MF, timeslot 16 contains all 0s. RSLIP SR1.4 Receive Elastic Store Slip Occurrence. Set when the elastic store has either repeated or deleted a frame of data. RUA1 SR1.3 Receive Unframed All 1s. Set when an unframed all 1s code is received at RTIP and RRING. RRA SR1.2 Receive Remote Alarm. Set when a remote alarm is received at RTIP and RRING. RCL SR1.1 Receive Carrier Loss. Set when 255 consecutive 0s have been detected at RTIP and RRING. RLOS SR1.0 Receive Loss of Sync. Set when the device is not synchronized to the receive E1 stream. ALARM CRITERIA Table 4-1 ALARM SET CRITERIA CLEAR CRITERIA CCITT SPEC. RSA1 (receive signaling all 1s) over 16 consecutive frames (one full MF) timeslot 16 contains less than three 0s over 16 consecutive frames (one full MF) timeslot 16 contains three or more 0s G.732 4.2 RSA0 (receive signaling all 0s) over 16 consecutive frames (one full MF) timeslot 16 contains all 0s over 16 consecutive frames (one full MF) timeslot 16 contains at least a single 1 G.732 5.2 RDMA (receive distant multiframe alarm) bit 6 in timeslot 16 of frame 0 set to 1 for two consecutive MF bit 6 in timeslot 16 of frame 0 set to 0 for a two consecutive MF O.162 2.1.5 RUA1 (receive unframed all 1s) less than three 0s in two frames (512 bits) more than two 0s in two frames (512 bits) O.162 1.6.1.2 |
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