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ADE7169ASTF16 数据表(PDF) 25 Page - Analog Devices |
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ADE7169ASTF16 数据表(HTML) 25 Page - Analog Devices |
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25 / 140 page  Preliminary Technical Data ADE7169F16 Rev. PrD | Page 25 of 140 Table 18. Scratch Pad 2 SFR (SCRATCH2, 0xFC) Bit Location Bit Mnemonic Default Value Description 7-0 SCRATCH2 0 Value can be written/read in this register. This value will be maintained in all the power saving modes of the ADE7169F16 Table 19. Scratch Pad 3 SFR (SCRATCH3, 0xFD) Bit Location Bit Mnemonic Default Value Description 7-0 SCRATCH3 0 Value can be written/read in this register. This value will be maintained in all the power saving modes of the ADE7169F16 Table 20. Scratch Pad 4 SFR (SCRATCH4, 0xFE) Bit Location Bit Mnemonic Default Value Description 7-0 SCRATCH4 0 Value can be written/read in this register. This value will be maintained in all the power saving modes of the ADE7169F16 Table 21. Power Control SFR (POWCON, 0xC5) Bit Location Bit Mnemonic Default Value Description 7-5 RESERVED 0 4 COREOFF 0 Set this bit to shut down the core if in the PSM1 operating mode. 3 RESERVED Controls the core clock frequency, Fcore. Fcore=4.096MHz/2CD CD[2:0] Fcore (MHz) 0 0 0 4.096 0 0 1 2.048 0 1 0 1.024 0 1 1 0.512 1 0 0 0.256 1 0 1 0.128 1 1 0 0.064 2-0 CD[2:0] 010 1 1 1 0.032 Note: Writing data to the POWCON SFR involves a double instruction sequence. Global interrupts must first be disabled to ensure that the two instructions occur consecutively. The KYREG SFR is set to 0xA7 and immediately followed by a write to the POWCON SFR. For example: CLR EA ;Disable Interrupts while configuring to WDT MOV KYREG,#0A7h ;Write KYREG to 0xA7 to get write access to the POWCON SFR MOV POWCON, #10H ;Shutdown the core NOP NOP POWER SUPPLY ARCHITECTURE ADE7169F16 has two power supply inputs, VDD and VBAT, and requires only a single 3.3V power supply at VDD for full operation. A battery backup, or secondary power supply, with a maximum of 3.6V can be connected to the VBAT input. Internally, the ADE7169F16 connects VDD or VBAT to VSW, which is used to derive the power for the ADE7169F16 circuitry. The |
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