Maxim Integrated 71M6513H Power Meter IC Family Software - Manual (Page 6)

71M651x Software User’s Guide
6.3. 80515 Hardware Description.................................................................................................. 115
6.3.1. Block Diagram............................................................................................................................... 116
6.3.2. 80515 MPU................................................................................................................................... 117
6.3.3. Serial Interface 0 and 1................................................................................................................. 121
6.3.4. Software Watchdog Timer............................................................................................................ 125
6.3.5. The Interrupt Service Routine Unit................................................................................................ 128
7. ACRONYMS........................................................................................................................................................... 136
List of Figures
Figure 2-1: Software Structure.................................................................................................................................. 14
Figure 3-1: Port Speed and Handshake Setup (left) and Port Configuration Setup (right).................................19
Figure 5-1: STARTUP.A51.......................................................................................................................................... 45
Figure 5-2: INIT.A51.................................................................................................................................................... 45
Figure 5-3: DEMO.C.................................................................................................................................................... 45
Figure 5-4: MAIN LOOP.............................................................................................................................................. 46
Figure 5-5: INIT Function........................................................................................................................................... 46
Figure 5-6: Timer ISRs............................................................................................................................................... 48
Figure 5-7: Process Timer (non-ISR)........................................................................................................................ 49
Figure 5-8: CE_BUSY ISR.......................................................................................................................................... 50
Figure 5-9: XFER_BUSY ISR...................................................................................................................................... 51
Figure 5-10: Serial 0 isr.............................................................................................................................................. 52
Figure 5-11: tx_now()................................................................................................................................................. 53
Figure 5-12: ce_update.............................................................................................................................................. 54
Figure 5-13: Display CE.............................................................................................................................................. 55
Figure 5-14: Command Line Interpreter................................................................................................................... 56
Figure 5-15: Auto-Calibration.................................................................................................................................... 57
Figure 5-16: ce_default Calibration.......................................................................................................................... 58
Figure 5-17: Calibration, continued.......................................................................................................................... 59
Figure 5-18: cmd_pending()...................................................................................................................................... 60
Figure 5-19: Single-Byte Read/Write......................................................................................................................... 61
Figure 5-20: Multi-Byte Read..................................................................................................................................... 62
Figure 5-21: Multi-Byte Write..................................................................................................................................... 63
Figure 5-22: Sag and Dip Conditions....................................................................................................................... 80
Figure 5-23: Sag Event............................................................................................................................................... 80
Figure 5-24: Crystal Frequency over Temperature..................................................................................................82
Figure 5-25: Crystal Compensation.......................................................................................................................... 82
Figure 6-1: Memory Map............................................................................................................................................ 97
Figure 6-2: 80515 MPU Block Diagram................................................................................................................... 114
Figure 6-3: Watchdog Block Diagram.................................................................................................................... 123
Figure 6-4: Interrupt Sources Diagram................................................................................................................... 133
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