LP3952 Datasheet, PDF (36/44 Pages) National Semiconductor (TI) – 6-Channel Color LED Driver with Audio Synchronization

EXT_PWM_CONTROL (07H) – EXTERNAL PWM CONTROL REGISTER
D7
D6
D5
D4
D3
r1_pwm
g1_pwm
b1_pwm
rw-0
rw-0
rw-0
D2
r2_pwm
rw-0
D1
g2_pwm
rw-0
D0
b2_pwm
rw-0
r1_pwm
g1_pwm
b1_pwm
r2_pwm
g2_pwm
b2_pwm
Bit 5
0 – R1 PWM control disabled
1 – R1 PWM control enabled
Bit 4
0 – G1 PWM control disabled
1 – G1 PWM control enabled
Bit 3
0 – RB PWM control disabled
1 – B1 PWM control enabled
Bit 2
0 – R2 PWM control disabled
1 – R2 PWM control enabled
Bit 1
0 – G2 PWM control disabled
1 – G2 PWM control enabled
Bit 0 ^{0 – B2 PWM control disabled}
1 – B2 PWM control enabled
ENABLES (0BH) – ENABLES REGISTER
D7
D6
D5
D4
nstby
en_boost
r-0
rw-0
rw-0
r-0
D3
D2
en_autoload
r-0
rw-1
D1
D0
rgb_sel[1:0]
rw-0
rw-0
nstby
en_boost
en_autoload
rgb_sel[1:0]
Bit 6
Bit 5
Bit 2
Bits 1-0
0 – LP3952 standby mode
1 – LP3952 active mode
0 – boost converter disabled
1 – boost converter enabled
0 – internal boost converter loader off
1 – internal boost converter loader on
Color LED control mode selection
rgb_sel[1:0]
Audio sync
Pattern generator
00
-
RGB1 & RGB2
01
-
RGB2
10
RGB2
RGB1
11
RGB1 & RGB2
-
Blinking sequence
-
RGB1
-
-
ADC_OUTPUT (0CH) – ADC DATA REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
data[7:0]
r-0
r-0
r-0
r-0
r-0
r-0
r-0
r-0
data[7:0]
Bits 7-0 Data register ADC (Audio input, light or temperature sensors)
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