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DS26334 Datasheet(PDF) 79 Page - Dallas Semiconductor |
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DS26334 Datasheet(HTML) 79 Page - Dallas Semiconductor |
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79 / 121 page  DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit 79 of 121 Register Name: BTCR Register Description: Bit Error Rate Tester Control Register Register Address (LIUs 1–8): 10h Bit # 7 6 5 4 3 2 1 0 Name BTS2 BTS1 BTS0 — — — — BERTE Default 0 0 0 0 0 0 0 0 Note: This register enables the LIU1-LIU8 BERT. The BERT can only connect to one LIU at a time. The LIU1-LIU8 BERT operates independently of the LIU9-LIU16 BERT. Bits 7 to 5: Bit Error Rate Transceiver Select [2:0] (BTS[2:0]). These bits BTS[2:0] select the LIU that the BERT applies to (see Table 6-18). This is only applicable if the BERTE bit is set. Bit 0: Bit Error Rate Tester Enable (BERTE). When this bit is set and 2 μs have past, the BERT will be enabled. The BERT register set should be written and read to only after being enabled. The BERT is only active for one LIU at a time selected by BTS[2:0]. If the BERT is enabled on the transmit (line) side, the BERT data will be automatically B8ZS/HDB3 encoded before it is transmitted. Register Address (LIUs 9–16): 30h Bit # 7 6 5 4 3 2 1 0 Name BTS2 BTS1 BTS0 — — — — BERTE Default 0 0 0 0 0 0 0 0 Note: This register enables the LIU9-LIU16 BERT. The BERT can only connect to one LIU at a time. The LIU9-LIU16 BERT operates independently of the LIU1–LIU8 BERT. Bits 7 to 5: Bit Error Rate Transceiver Select [2:0] (BTS[2:0]) These bits BTS[2:0] select the LIU that the BERT applies too (see Table 6-19). This is only applicable if the BERTE bit is set. Bit 0: Bit Error Rate Tester Enable (BERTE). When this bit is set and 2 μs have past, the BERT will be enabled. The BERT register set should be written and read to only after being enabled. The BERT is only active for one LIU at a time selected by BTS[2:0]. If the BERT is enabled on the transmit (line) side, the BERT data will be automatically B8ZS/HDB3 encoded before it is transmitted. |
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