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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MT9072AB датащи(PDF) 98 Page - Zarlink Semiconductor Inc |
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MT9072AB датащи(HTML) 98 Page - Zarlink Semiconductor Inc |
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98 / 275 page  MT9072 Data Sheet 98 Zarlink Semiconductor Inc. 15.2.1 Polling Method 1. The IRQ pin goes low. 2. Read all 33 interrupt vector status registers. The bits which are set in these registers identify the source of the interrupt. As each register is read, it is cleared (all bits set to 0). When all registers are clear, the interrupt is cleared (the IRQ pin returns to logic high) and all sources of the interrupt are identified. 15.2.2 Vector Method 1. The IRQ pin goes low. 2. Read the interrupt vectors. These vectors identify which of the 33 (or which combination of 33) interrupt status registers has bits which are set. Note that if multiple framers (i.e. Framer 1 and 7), or multiple conditions (i.e., Sync and Counter Overflow) caused the interrupt, more than one register may need to be read. 3. Read the interrupt status register(s) identified in step 2. The bits which are set in these registers identify the source of the interrupt. As each register is read, it is cleared (all bits set to 0). When all interrupt status registers are cleared, the interrupt vector goes to zero and the IRQ pin returns to logic high. 15.3 T1 Interrupt Vector and Interrupt Source Summary Interrupt Vector Interrupt Vector Mask Interrupt Registers Address Bit Name Address Bit Name Status Address Mask Address Register Name Framer 911 F7HVS 903 F7HM 733 743 HDLC 7 911 F7EVS 903 F7EM 734 744 Receive Sync 7 911 F7RVS 903 F7RM 735 745 Receive Line 7 911 F7SVS 903 F7SM 736 746 Elastic store 7 911 F6HVS 903 F6HM 633 643 HDLC 6 911 F6EVS 903 F6EM 634 644 Receive Sync 6 911 F6RVS 903 F6RM 635 645 Receive Line 6 911 F6SVS 903 F6SM 636 646 Elastic 6 911 F5HVS 903 F5HM 533 543 HDLC 5 911 F5EVS 903 F5EM 534 544 Receive Sync 5 911 F5RVS 903 F5RM 535 545 Receive Line 5 911 F5SVS 903 F5SM 536 546 Elastic 5 911 F4HVS 903 F4HM 433 443 HDLC 4 911 F4EVS 903 F4EM 434 444 Receive Sync 4 911 F4RVS 903 F4RM 435 445 Receive Line 4 911 F4SVS 903 F4SM 436 446 Elastic 4 Table 50 - Interrupt Vector and Interrupt Source Summary (T1) |
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