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MAX7314 Datasheet, PDF (21/25 Pages) Maxim Integrated Products – 18-Port GPIO with LED Intensity Control, Interrupt, and Hot-Insertion Protection
18-Port GPIO with LED Intensity Control,
Interrupt, and Hot-Insertion Protection
Table 14. Output Intensity Registers
REGISTER
OUTPUTS P1, P0 INTENSITY
Write output P1, P0 intensity
Read back output P1, P0 intensity
Output P1 intensity duty cycle is 1/16
Output P1 intensity duty cycle is 2/16
Output P1 intensity duty cycle is 3/16
—
Output P1 intensity duty cycle is 14/16
Output P1 intensity duty cycle is 15/16
Output P1 intensity duty cycle is 16/16
(static logic level, no PWM)
ADDRESS
CODE
R/W (hex)
0
1
—
—
—
—
—
—
0X10
—
REGISTER DATA
D7
D6
D5
D4
MSB
LSB
OUTPUT P1 INTENSITY
D3
D2
D1
D0
MSB
LSB
OUTPUT P0 INTENSITY
P1I3 P1I2 P1I1 P1I0 P0I3 P0I2 P0I1 P0I0
0
0
0
0
—
—
—
—
0
0
0
1
—
—
—
—
0
0
1
0
—
—
—
—
—
—
—
—
—
—
—
—
1
1
0
1
—
—
—
—
1
1
1
0
—
—
—
—
1
1
1
1
—
—
—
—
Output P0 intensity duty cycle is 1/16
—
Output P0 intensity duty cycle is 2/16
—
Output P0 intensity duty cycle is 3/16
—
—
—
Output P0 intensity duty cycle is 14/16 —
Output P0 intensity duty cycle is 15/16 —
Output P0 intensity duty cycle is 16/16
(static logic level, no PWM)
—
—
—
—
—
0
0
0
0
—
—
—
—
0
0
0
1
—
—
—
—
0
0
1
0
—
—
—
—
—
—
—
—
—
—
—
—
1
1
0
1
—
—
—
—
1
1
1
0
—
—
—
—
1
1
1
1
OUTPUTS P3, P2 INTENSITY
Write output P3, P2 intensity
Read back output P3, P2 intensity
OUTPUTS P5, P4 INTENSITY
Write output P5, P4 intensity
Read back output P5, P4 intensity
OUTPUTS P7, P6 INTENSITY
Write output P7, P6 intensity
Read back output P7, P6 intensity
MSB
LSB MSB
LSB
OUTPUT P3 INTENSITY
OUTPUT P2 INTENSITY
0x11
0
P3I3 P3I2 P3I1 P3I0 P2I3 P2I2 P2I1 P2I0
1
MSB
LSB MSB
LSB
OUTPUT P5 INTENSITY
OUTPUT P4 INTENSITY
0x12
0
P5I3 P5I2 P5I1 P5I0 P4I3 P4I2 P4I1 P4I0
1
MSB
LSB MSB
LSB
OUTPUT P7 INTENSITY
OUTPUT P6 INTENSITY
0x13
0
P7I3 P7I2 P7I1 P7I0 P6I3 P6I2 P6I1 P6I0
1
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