Table 14. output intensity registers – Rainbow Electronics MAX7315 User Manual
Page 22

MAX7315
8-Port I/O Expander with LED Intensity
Control and Interrupt
22
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Table 14. Output Intensity Registers
REGISTER DATA
REGISTER
ADDRESS
CODE
(HEX)
D7
D6
D5
D4
D3
D2
D1
D0
MSB
LSB
MSB
LSB
OUTPUTS P1, P0 INTENSITY
R/
W
OUTPUT P1 INTENSITY
OUTPUT P0 INTENSITY
Write output P1, P0 intensity
0
Read back output P1, P0 intensity
1
P1I3
P1I2
P1I1
P1I0
P0I3
P0I2
P0I1
P0I0
Output P1 intensity duty cycle is 1/16
—
0
0
0
0
—
—
—
—
Output P1 intensity duty cycle is 2/16
—
0
0
0
1
—
—
—
—
Output P1 intensity duty cycle is 3/16
—
0
0
1
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Output P1 intensity duty cycle is 14/16
—
1
1
0
1
—
—
—
—
Output P1 intensity duty cycle is 15/16
—
1
1
1
0
—
—
—
—
Output P1 intensity duty cycle is 16/16
(static logic level, no PWM)
—
1
1
1
1
—
—
—
—
Output P0 intensity duty cycle is 1/16
—
—
—
—
—
0
0
0
0
Output P0 intensity duty cycle is 2/16
—
—
—
—
—
0
0
0
1
Output P0 intensity duty cycle is 3/16
—
—
—
—
—
0
0
1
0
—
—
—
—
—
—
—
—
—
—
Output P0 intensity duty cycle is 14/16
—
—
—
—
—
1
1
0
1
Output P0 intensity duty cycle is 15/16
—
—
—
—
—
1
1
1
0
Output P0 intensity duty cycle is 16/16
(static logic level, no PWM)
—
0X10
—
—
—
—
1
1
1
1
MSB
LSB
MSB
LSB
OUTPUTS P3, P2 INTENSITY
OUTPUT P3 INTENSITY
OUTPUT P2 INTENSITY
Write output P3, P2 intensity
0
Read back output P3, P2 intensity
1
0x11
P3I3
P3I2
P3I1
P3I0
P2I3
P2I2
P2I1
P2I0
MSB
LSB
MSB
LSB
OUTPUTS P5, P4 INTENSITY
OUTPUT P5 INTENSITY
OUTPUT P4 INTENSITY
Write output P5, P4 intensity
0
Read back output P5, P4 intensity
1
0x12
P5I3
P5I2
P5I1
P5I0
P4I3
P4I2
P4I1
P4I0
MSB
LSB
MSB
LSB
OUTPUTS P7, P6 INTENSITY
OUTPUT P7 INTENSITY
OUTPUT P6 INTENSITY
Write output P7, P6 intensity
0
Read back output P7, P6 intensity
1
0x13
P7I3
P7I2
P7I1
P7I0
P6I3
P6I2
P6I1
P6I0
OUTPUT O8 INTENSITY
See the master, O8 intensity register (Table 13).