Datasheet

MAX6964
17-Output LED Driver/GPO with
Intensity Control and Hot-Insertion Protection
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Table 12. Output Intensity Registers
REGISTER DATA
REGISTER
ADDRESS
CODE
(hex)
D7 D6 D5 D4 D3 D2 D1 D0
MSB LSB
MSB LSB
OUTPUTS O1, O0 INTENSITY
R/W
OUTPUT O1 INTENSITY OUTPUT O0 INTENSITY
Write output O1, O0 intensity
0
Read back output O1, O0 intensity
1
O1I3 O1I2 O1I1 O1I0 O0I3 O0I2 O0I1
O0I0
Output O1 intensity duty cycle is 1/16
—
0000————
Output O1 intensity duty cycle is 2/16
—
0001————
Output O1 intensity duty cycle is 3/16
—
0010————
—
—
————————
Output O1 intensity duty cycle is 14/16
—
1101————
Output O1 intensity duty cycle is 15/16
—
1110————
Output O1 intensity duty cycle is 16/16
(static logic level, no PWM)
—
1111————
Output O0 intensity duty cycle is 1/16
—
———— 0 0 0 0
Output O0 intensity duty cycle is 2/16
—
———— 0 0 0 1
Output O0 intensity duty cycle is 3/16
—
———— 0 0 1 0
—
—
————————
Output O0 intensity duty cycle is 14/16
—
———— 1 1 0 1
Output O0 intensity duty cycle is 15/16
—
———— 1 1 1 0
Output O0 intensity duty cycle is 16/16
(static logic level, no PWM)
—
0X10
———— 1 1 1 1
MSB LSB
MSB LSB
OUTPUTS O3, O2 INTENSITY
OUTPUT O3 INTENSITY OUTPUT O2 INTENSITY
Write output O3, O2 intensity
0
Read back output O3, O2 intensity
1
0x11
O3I3 O3I2 O3I1 O3I0 O2I3 O2I2 O2I1
O2I0
MSB LSB
MSB LSB
OUTPUTS O5, O4 INTENSITY
OUTPUT O5 INTENSITY OUTPUT O4 INTENSITY
Write output O5, O4 intensity
0
Read back output O5, O4 intensity
1
0x12
O5I3 O5I2 O5I1 O5I0 O4I3 O4I2 O4I1
O4I0
MSB LSB
MSB LSB
OUTPUTS O7, O6 INTENSITY
OUTPUT O7 INTENSITY OUTPUT O6 INTENSITY
Write output O7, O6 intensity
0
Read back output O7, O6 intensity
1
0x13
O7I3 O7I2 O7I1 O7I0 O6I3 O6I2 O6I1
O6I0