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LP5569 数据表(PDF) 46 Page - Texas Instruments |
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LP5569 数据表(HTML) 46 Page - Texas Instruments |
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46 / 93 page  46 LP5569 SNVSAP8A – JULY 2017 – REVISED SEPTEMBER 2017 www.ti.com Product Folder Links: LP5569 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Table 24. LED5_CONTROL Register Field Descriptions (continued) Bit Field Type Reset Description 3 exp_en5 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_power5 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 8.6.1.10 LED6_CONTROL Register (Address = Dh) [reset = 0h] LED6_CONTROL is shown in Figure 36 and described in Table 25. Return to Summary Table. LED6 Control Register Figure 36. LED6_CONTROL Register 7 6 5 4 3 2 1 0 mf_mapping6 led6_ratio_en exp_en6 external_power 6 RESERVED R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h Table 25. LED6_CONTROL Register Field Descriptions Bit Field Type Reset Description 7–5 mf_mapping6 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 led6_ratio_en R/W 0h 0 = Disables ratiometric dimming (default) 1 = Enables ratiometric dimming When ratiometric dimming is enabled, the emitted color of an RGBLED remains the same regardless of the initial magnitude of the LED output. 3 exp_en6 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_power6 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 8.6.1.11 LED7_CONTROL Register (Address = Eh) [reset = 0h] LED7_CONTROL is shown in Figure 37 and described in Table 26. Return to Summary Table. LED7 Control Register |
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