71M6521DE/71M6521FE
Energy Meter IC
DATASHEET
JANUARY 2008
Table 46: Interrupt Enable and Flag Bits.....................................................................................................................33
Table 48: Priority Level Groups....................................................................................................................................34
Table 49: The IP0 Register ..........................................................................................................................................34
Table 50: The IP1 Register: .........................................................................................................................................34
Table 51: Priority Levels...............................................................................................................................................34
Table 52: Interrupt Polling Sequence...........................................................................................................................35
Table 53: Interrupt Vectors...........................................................................................................................................35
Table 54: Data/Direction Registers and Internal Resources for DIO Pin Groups .........................................................40
Table 55: DIO_DIR Control Bit.....................................................................................................................................40
Table 56: Selectable Controls using the DIO_DIR Bits ................................................................................................41
Table 57: EECTRL Status Bits.....................................................................................................................................42
Table 58: EECTRL bits for 3-wire interface.................................................................................................................43
Table 59: TMUX[4:0] Selections...................................................................................................................................46
Table 60: Available Circuit Functions (“—“ means “not active).....................................................................................50
Table 61: Frequency over Temperature.......................................................................................................................61
Table 62: LCD and DIO Pin Assignment by LCD_NUM for the QFN-68 Package .......................................................64
Table 63: LCD and DIO Pin Assignment by LCD_NUM for the LQFP-64 Package......................................................65
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