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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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SC643EVB Fiches technique(PDF) 19 Page - Semtech Corporation |
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SC643EVB Fiches technique(HTML) 19 Page - Semtech Corporation |
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19 / 26 page  SC643 19 Register Map(1) Address(2) D5 D4 D3 D2 D1 D0 Reset Value Description 00h 0(3) BL5EN BL4EN BL3EN BL2EN BL1EN 00h Backlight Enable 01h 0(3) MBL4 MBL3 MBL2 MBL1 MBL0 00h Main Backlight Current 02h 0(3) SBL4 SBL3 SBL2 SBL1 SBL0 00h Sub Backlight Current 05h 0(3) 0(3) LDO1V3 LDO1V2 LDO1V1 LDO1V0 00h LDO1 06h 0(3) 0(3) 0(3) LDO2V2 LDO2V1 LDO2V0 00h LDO2 07h 0(3) 0(3) LDO3V3 LDO3V2 LDO3V1 LDO3V0 00h LDO3 08h 0(3) 0(3) LDO4V3 LDO4V2 LDO4V1 LDO4V0 00h LDO4 09h SFADE1 SFADE0 SFADE MFADE1 MFADE0 MFADE 00h Main/Sub Backlight Fade 0Ah 0(3) 0(3) 0(3) MB2 MB1 MB0 00h Main/Sub Bank Select Notes: (1) all registers are write-only (2) Addresses 03h and 04h are not used (3) 0 = always write a 0 to these bits Definition of Registers and Bits BL Enable Control Register (00h) This register enables the backlight current sinks. Bit D5 This bit is unused and is always a zero. BL5EN through BL1EN [D4:D0] These bits are used to enable current sinks. These current sinks will then sink whatever current is set in the corre- sponding current control register. Main Backlight Current Control Register (01h) This register is used to set the currents for the LED drivers designated as main backlight current sinks. Note these current sinks can be disabled using register 00h or by writing the 0mA value into this register. Bit D5 This bit is unused and is always a zero. |
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