17-Output LED Driver/GPO with
Intensity Control and Hot-Insertion Protection
Table 12. Output Intensity Registers
REGISTER
ADDRESS
CODE
REGISTER DATA
R/ W
(hex)
D7
D6
D5
D4
D3
D2
D1
D0
OUTPUTS O1, O0 INTENSITY
MSB                     LSB MSB                     LSB
OUTPUT O1 INTENSITY OUTPUT O0 INTENSITY
Write output O1, O0 intensity
Read back output O1, O0 intensity
Output O1 intensity duty cycle is 1/16
Output O1 intensity duty cycle is 2/16
Output O1 intensity duty cycle is 3/16
Output O1 intensity duty cycle is 14/16
Output O1 intensity duty cycle is 15/16
0
1
O1I3
0
0
0
1
1
O1I2
0
0
0
1
1
O1I1
0
0
1
0
1
O1I0
0
1
0
1
0
O0I3
O0I2
O0I1
O0I0
Output O1 intensity duty cycle is 16/16
(static logic level, no PWM)
Output O0 intensity duty cycle is 1/16
Output O0 intensity duty cycle is 2/16
Output O0 intensity duty cycle is 3/16
Output O0 intensity duty cycle is 14/16
Output O0 intensity duty cycle is 15/16
Output O0 intensity duty cycle is 16/16
(static logic level, no PWM)
0X10
1
1
1
1
0
0
0
1
1
1
0
0
0
1
1
1
0
0
1
0
1
1
0
1
0
1
0
1
OUTPUTS O3, O2 INTENSITY
Write output O3, O2 intensity
Read back output O3, O2 intensity
OUTPUTS O5, O4 INTENSITY
Write output O5, O4 intensity
Read back output O5, O4 intensity
OUTPUTS O7, O6 INTENSITY
Write output O7, O6 intensity
Read back output O7, O6 intensity
0
1
0
1
0
1
0x11
0x12
0x13
MSB                     LSB MSB                     LSB
OUTPUT O3 INTENSITY OUTPUT O2 INTENSITY
O3I3 O3I2 O3I1 O3I0 O2I3 O2I2 O2I1 O2I0
MSB                     LSB MSB                     LSB
OUTPUT O5 INTENSITY OUTPUT O4 INTENSITY
O5I3 O5I2 O5I1 O5I0 O4I3 O4I2 O4I1 O4I0
MSB                     LSB MSB                     LSB
OUTPUT O7 INTENSITY OUTPUT O6 INTENSITY
O7I3 O7I2 O7I1 O7I0 O6I3 O6I2 O6I1 O6I0
______________________________________________________________________________________
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