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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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LP5569 데이터시트(PDF) 47 Page - Texas Instruments |
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LP5569 데이터시트(HTML) 47 Page - Texas Instruments |
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47 / 93 page  47 LP5569 www.ti.com SNVSAP8A – JULY 2017 – REVISED SEPTEMBER 2017 Product Folder Links: LP5569 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Figure 37. LED7_CONTROL Register 7 6 5 4 3 2 1 0 mf_mapping7 led7_ratio_en exp_en7 external_power 7 RESERVED R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h Table 26. LED7_CONTROL Register Field Descriptions Bit Field Type Reset Description 7–5 mf_mapping7 R/W 0h Master fader mapping select: 0h = No master fading (default) 1h = Master fader1 2h = Master fader2 3h = Master fader3 4h = No master fading 5h = PWM input master fading 6h = No master fading 7h = No master fading 4 led7_ratio_en R/W 0h 0 = Disables ratiometric dimming (default) 1 = Enables ratiometric dimming When ratiometric dimming is enabled, the emitted color of an RGB LED remains the same regardless of the initial magnitude of the LED output. 3 exp_en7 R/W 0h 0 = Linear adjustment (default) 1 = Exponential adjustment This bit is effective for both the program execution engine control and direct PWM control. 2 external_power7 R/W 0h 0 = LED is powered by charge pump (default) 1 = LED is powered by external power source 1–0 RESERVED R/W 0h 8.6.1.12 LED8_CONTROL Register (Address = Fh) [reset = 0h] LED8_CONTROL is shown in Figure 38 and described in Table 27. Return to Summary Table. LED8 Control Register Figure 38. LED8_CONTROL Register 7 6 5 4 3 2 1 0 mf_mapping8 led8_ratio_en exp_en8 external_power 8 RESERVED R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h Table 27. LED8_CONTROL Register Field Descriptions Bit Field Type Reset Description 7–5 mf_mapping8 R/W 0h Master fader mapping select: 0h = No master fading (default) 1h = Master fader1 2h = Master fader2 3h = Master fader3 4h = No master fading 5h = PWM input master fading 6h = No master fading 7h = No master fading 4 led8_ratio_en R/W 0h 0 = Disables ratiometric dimming (default) 1 = Enables ratiometric dimming When ratiometric dimming is enabled, the emitted color of an RGB LED remains the same regardless of the initial magnitude of the LED output. |
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