LP3954 Datasheet, PDF (17/56 Pages) National Semiconductor (TI) – Advanced Lighting Management Unit

START BIT
Pattern_gen_ctrl register’s RGB_START bit will enable command execution starting from Command 1.
Pattern gen ctrl register (11H)
rgb_start
Bit 2
0 – Pattern generator disabled
1 – execution pattern starting from command 1
loop
Bit 1
0 – pattern generator loop disabled (single pattern)
1 – pattern generator loop enabled (execute until stopped)
log
Bit 0
0 – color intensity mode 0
1 – color intensity mode 1
HARDWARE ON/OFF CONTROL AND DIMMING
PWM_LED input can be used as direct ON/OFF control or PWM dimming control for selected RGB outputs or the WLED groups.
PWM_LED control can be enabled with the control bits in the Ext. PWM Control register.
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