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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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BT8376EPF Scheda tecnica(PDF) 75 Page - Synaptics Incorporated. |
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BT8376EPF Scheda tecnica(HTML) 75 Page - Synaptics Incorporated. |
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75 / 323 page  Bt8370/8375/8376 2.0 Circuit Description Fully Integrated T1/E1 Framer and Line Interface 2.7 Transmit System Bus N8370DSE Conexant 2-47 The TSB supports five system bus rates (MHz): 1.536, 1.544, 2.048, 4.096, and 8.192. The T1 rate, with 24 time slots and without framing bits, is 1.536 MHz. The T1 rate with framing bits is 1.544 MHz. The E1 rate, with 32 time slots, is 2.048 MHz. The 4.096 MHz rate is twice the E1 rate, with 64 time slots. The 8.192 MHz rate is 4 times the E1 rate, with 128 time slots. The 4.096 and 8.192 MHz bus modes contain multiple bus members (A, B, C, and D), of which 1 bus member is selected by the SBI [3:0] bits in the System Bus Interface Configuration register [SBI_CR; 0D0]. See Figures 2-25 and 2-25. The system bus rate is independent of the line rate and must be selected using the System Bus Interface Configuration register. Figure 2-24. Transmit System Bus Waveforms TSBCKI 1 2 3 4 56 7 8 1 23 4 5 6 7 8 12 X X X X AB C D X XX X A B C D XX 1 2 3 4 5 6 78F 1 2 3 4 5 6 7 81 XX X X A B C D X X X X X A B C DX TPCMO TINDO TSIGI TPCMI TINDO TSIGI TFSYNC TMSYNC Frame 48 TS 31 Frame 1TS 0 Frame 48 TS 24 Frame 0 TS 1 E1 T1 Figure 2-25. TSB 4.096 MHz Bus Mode Time Slot Interleaving NOTE(S): A and B time slot data comes from different Bt8370s. TSBCKI can be operated at 1 or 2 times the data rate. TSBCKI TS31A TS31B TS0A TS0B TPCMI TFSYNC SIG31A SIG31B SIG0A SIG0B TSIGI Figure 2-26. TSB 8.192 MHz Bus Mode Time Slot Interleaving NOTE(S): A, B, C, and D time slot data comes from different Bt8370s. TSBCKI can be operated at 1 or 2 times the data rate. SIG31A SIG31B SIG31C SIG31D SIG0A SIG0B SIG0C SIG0D TSBCKI TSIGI TFSYNC TS31A TS31B TS31C TS31D TS0A TS0B TS0C TS0D TPCMI |
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