MAX7315 Datasheet, PDF (21/27 Pages) Maxim Integrated Products – 8-Port I/O Expander with LED Intensity Control and Interrupt

8-Port I/O Expander with LED Intensity
Control and Interrupt
Table 13. Master, O8 Intensity Register
REGISTER
MASTER AND GLOBAL INTENSITY
Write master and global intensity
Read back master and global intensity
Master intensity duty cycle is 0/15 (off);
internal oscillator is disabled;
all outputs will be static with no PWM
Master intensity duty cycle is 1/15
Master intensity duty cycle is 2/15
Master intensity duty cycle is 3/15
—
Master intensity duty cycle is 13/15
Master intensity duty cycle is 14/15
Master intensity duty cycle is 15/15 (full)
ADDRESS
CODE
R/W ^(HEX)
0
1
—
—
—
—
—
—
0X0E
—
—
REGISTER DATA
D7
D6
D5
D4
MSB
LSB
MASTER INTENSITY
D3
MSB
D2
D1
O8 INTENSITY
M3
M2
M1
M0
G3
G2
G1
0
0
0
0
—
—
—
0
0
0
1
—
—
—
0
0
1
0
—
—
—
0
0
1
1
—
—
—
—
—
—
—
—
—
—
1
1
0
1
—
—
—
1
1
1
0
—
—
—
1
1
1
1
—
—
—
D0
LSB
G0
—
—
—
—
—
—
—
—
O8 intensity duty cycle is 1/16
—
O8 intensity duty cycle is 2/16
—
O8 intensity duty cycle is 3/16
—
—
—
O8 intensity duty cycle is 14/16
—
O8 intensity duty cycle is 15/16
—
O8 intensity duty cycle is 16/16
(static output, 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
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