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STA002 数据表(PDF) 38 Page - STMicroelectronics |
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STA002 数据表(HTML) 38 Page - STMicroelectronics |
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38 / 43 page ![]() 20 bit BC FRAME 432 ms SCH DATA MULTIPLEX SP SCH SCH SCH SP DATA MULTIPLEX SP DATA MULTIPLEX DATA MULTIPLEX SP SP DATA MULTIPLEX SCH SP SCH DATA MULTIPLEX SP SCH TDM SYNCHRONISATION STATE MACHINE ( CASE 1) SP DETECTION PRE SYNC SYNC Tx TDM SYNCHRONISATION STATE MACHINE (CASE 2) SP DETECTION SYNC Tm SP BRI EC ACI1 ACI2 Nsc ADF1 ADF2 SF SOLF SCCF-1 SCCF-8 Dynamic Labels Service Control Data Service Component Control Field SCH DATA FIELD Service Component multiplex Service Component multiplex DATA FIELD SCCF interrupt SCH interrupt reset by SW SCH available SCCF available Tsch Tsccf SCH & SCCF INTERRUPT Tm = SCCF/ SCH not available setup ~ 32 ms Tsch = SCH interrupt time ~ 1 3.5 ms Tsccf = SCCF interrupt time ~ 432 7136 ⋅ BRI ⋅ 128 + Nsc ⋅ 32ms BRI = Bit Rate Index ( from 1 to 8) Nsc = number of Service Component ( from1 to 8) 8.5 LOSS OF SYNC TABLE MPF PRC BC TSCC available SCH available SCCF available TDM Out of Frame unlocked unlocked unlocked not available * * PRC Out of Frame locked unlocked unlocked available * * BC Out of Frame locked locked unlocked available * * CONTROL REGISTER STATUS REGISTER TDM OOF b2 PRC OOF b4 BC OOF b5 MFP lock b4 PRC lock b3 BC lock b1 TSCC available b0 SCH available b2 SCCF available b5 0 1 0 0 0 X 1 0 0 X X 1 1 0 1 1 1 0 0 1 1 0 0 0 1 0 1 1 1 * * * 1 * * * * Meaningful only if all the sync levels (MFP, PRC, BC) are locked otherwise not significant STA002 38/43 |
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