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STA002 数据表(PDF) 23 Page - STMicroelectronics |
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STA002 数据表(HTML) 23 Page - STMicroelectronics |
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23 / 43 page  Reg name: PRC_TRSH2 Internal address: 203 H Type: R/W Reset Value: 23H MSB LSB X X b5 b4 b3 b2 b1 b0 Description: Prime rate channel preamble recog- nition - Warning flag threshold level. It defines the minimum number of PRC preamble bits to be recognized before setting an alarm con- dition. Reg name: PRC_ALARM Internal address: 208 H Type: R/W Reset Value: 00H MSB LSB b7 b6 b5 b4 X X b1 b0 Description: PRC finite state machine control reg- ister (see table 5). Reg name: PRC_ACTIVE_REG Internal address: 20F H Type: R MSB LSB b7 b6 b5 b4 b3 b2 b1 b0 Description: It gives the list of active PRC within one selected BC. b0 to b7 indicates PRC0 to PRC7 respectively. Reg name: PRC_LOCK_REG Internal address: 210 H Type: R MSB LSB b7 b6 b5 b4 b3 b2 b1 b0 Description: Lock status of each PRC b0 to b7 indicates the lock status of PRC0 to PRC7 respectively. Reg name: PRC_DELAY_REG Internal address: 211 H Type: R MSB LSB X X X X b3b2b1b0 Description: PRC maximum number of delay symbols It detects the maximum number of delay symbols among the PRC within the same BC. Table 5: PRC_ALARM b7 b6 b5 b4 b1 b0 PRC FSM active states X X X X 0 0 prcp_detection, prcp_presync, prcp_sync X X X X 0 1 prcp_detection, prcp_presync, prcp_sync, alarm 1 0 0 0 0 1 0 sp_detection, sp_presync, sp_sync, alarm2 0 0 0 1 1 0 sp_detection, sp_presync, sp_sync, alarm2 (1 cycle) 0 0 1 0 1 0 sp_detection, sp_presync, sp_sync, alarm2 (2 cycles) 0 0 1 1 1 0 sp_detection, sp_presync, sp_sync, alarm2 (3 cycles) - - - - 1 0 sp_detection, sp_presync, sp_sync, alarm2 (n cycles) 1 1 1 1 1 0 sp_detection, sp_presync, sp_sync, alarm2 (16 cycles) 0 0 0 0 1 1 sp_detection, sp_presync, sp_sync, alarm1, alarm2 0 0 0 1 1 1 sp_detection, sp_presync, sp_sync, alarm1, alarm2 (1 cycle) 0 0 1 0 1 1 sp_detection, sp_presync, sp_sync, alarm1, alarm2 (2 cycles) 0 0 1 1 1 1 sp_detection, sp_presync, sp_sync, alarm1, alarm2 (3 cycles) - - - - 1 1 sp_detection, sp_presync, sp_sync, alarm1, alarm2 (n cycles) 1 1 1 1 1 1 sp_detection, sp_presync, sp_sync, alarm1, alarm2 (16 cycles) STA002 23/43 |
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