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WM8232 bảng dữ liệu(PDF) 67 Page - Cirrus Logic |
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WM8232 bảng dữ liệu(HTML) 67 Page - Cirrus Logic |
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67 / 141 page ![]() WM8232 Rev 4.6 67 EXTENDED PAGE REGISTERS R432 (1B0h) User access control 0 0 0 0 0 0 0 USER_KEY 00h R436 (1B4h) LDO2 control 0 0 0 LDO2 VSEL 10h R448 (1C0h) USER_KEY2 0 0 0 0 0 0 0 USER_KEY2 00h R459 (1CBh) Comp control 0 0 0 0 0 0 PT_COMP[1:0] 01h Notes: 1. To change the LDO2 control, the USER_KEY bit must be set to ‘1’. 2. If it’s not required to change this register, it must be set as default. 3. To change the Comp control, the USER_KEY2 bit must be set to ‘1’. 4. If it’s not required to change this register, must be set as default. REGISTER BITS BY ADDRESS REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R0 (00h) Software Reset/Chip ID 1 7:0 SW_RESET_ CHIP_ID[7:0] 0011_0010 A write issues a software reset, and returns all control registers to their default values. A read returns lower bits of the device ID Register 00h Software Reset/Chip ID 1 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R1 (01h) Chip ID 2 7:0 CHIP_ID[7:0] 1000_0010 A read returns upper bits of the device ID Register 01h Chip ID 2 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R2 (02h) Chip Rev 3:0 CHIP_REV[3:0] 0000 A read returns the device revision number Register 02h Chip Rev REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION REFER TO R3 (03h) Setup Reg 1 4 CHZPD 0 ADC powerdown control for channel 3 (related PGA and digits goes power down) 0 = normal operation 1 = power down |
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