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BT8376EPF Datasheet(PDF) 171 Page - Synaptics Incorporated. |
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BT8376EPF Datasheet(HTML) 171 Page - Synaptics Incorporated. |
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171 / 323 page  Bt8370/8375/8376 Fully Integrated T1/E1 Framer and Line Interface 3.8 Receiver Registers N8370DSE Conexant 3-53 LATCH_ERR Enable ONESEC Latching of Errors—Determines the interval for which latched active errors are held in error interrupt [ISR5; addr 006] and in pattern interrupt [ISR0; addr 00B] status. LATCH_ALM Enable ONESEC Latching of Alarms—Determines the interval for which latched active alarms remain held in alarm interrupt status [ISR7, ISR6; addr 004, 005]. 047—Alarm 1 Status (ALM1) ALM1 reports current status of receive alarms. Any change in the current status activates the corresponding interrupt status bit [ISR7; addr 004]. RMYEL Receive Multiframe Yellow Alarm—Real-time or integrated RMYEL status depends on the selected framer mode and the Yellow Alarm integration mode [YEL_INTEG; addr 045]. Refer to Table 3-12 for mode summary and Table 3-13 for set/clear criteria. For YF detection, DL1 must be configured for FDL operation and RDL1_EN set to one. Also, RBOP_START must be set to one in register BOP [addr 0A0]. Refer to registers DL1_TS [addr 0A4] and DL1_CTL [addr 0A6]. 0 = no alarm 1 = receive multiframe Yellow Alarm IER LATCH_ERR ISR Latched ISR Hold Time 0 0 Rising edge event Until read clear 0 1 Rising edge event ONESEC interval 1 X Rising edge event Until read clear IER LATCH_ALM ISR Latched ISR Hold Time 0 0 Rising edge or transition Until read clear 0 1 Rising edge or transition ONESEC interval 1 X Rising edge or transition Until read clear NOTE: Interrupt type determines rising edge or transition event. 7 6 5 4 3 2 1 0 RMYEL RYEL — RAIS RALOS RLOS RLOF SIGFRZ Table 3-12. Receive Yellow Alarm Receive Framer Mode YEL_INTEG = 0 YEL_INTEG = 1 RYEL RMYEL RYEL RMYEL FT/SF/SLC YB2 — YB2_INT — JYEL YJ — YJ_INT — T1DM Y24 — Y24_INT — ESF YB2 YF YB2_INT YF_INT FAS Y0 — Y0_INT — CAS Y0 Y16 Y0_INT Y16_INT NOTE(S): Last known frame alignment is used to locate and monitor Yellow Alarms. Therefore, RYEL and RMYEL do not accurately report alarms during receive loss of frame alignment [RLOF; addr 047]. |
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