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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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STMPE1208S 데이터시트(PDF) 40 Page - STMicroelectronics |
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STMPE1208S 데이터시트(HTML) 40 Page - STMicroelectronics |
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40 / 51 page  Command registers STMPE1208S 40/51 7 Command registers The command registers do not have a data field. The device carries out a predetermined operation upon receiving a write access to these address offset. However, a dummy data- phase is used to complete the I2C transaction. Table 8. Command registers Command Operation 0xF8 CLK_SRC_INTERNAL Use internal OSC as clock source 0xF9 CLK_SRC_EXTERNAL Use TCLK pin as clock source 0xFA BIAS_OFF Turns OFF biasing for internal LDO When external supply is used for V25, turning OFF the biasing for internal LDO reduces current consumption 0xFB BIAS_ON Turns ON biasing for internal LDO 0xFC Wake Up Exits from sleep and enters Active mode 0xFD Enter Sleep Enter sleep mode 0xFE Cold Reset Resets all states and registers 0xFF Warm Reset Resets internal state machines, register values remain the same NOTE: I2C WRITE TO THIS REGISTER WILL NOT BE ACKNOWLEDGED. However as long as I2C timing is followed, the writing to this register will work correctly |
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