Rainbow Electronics MAX7313 - Manual (Page 23)

MAX7313
16-Port I/O Expander with LED Intensity
Control and Interrupt
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Table 14. Output Intensity Registers (continued)
REGISTER DATA
REGISTER
ADDRESS
CODE
(HEX)
D7 D6 D5 D4 D3 D2 D1 D0
MSB LSB MSB LSB
OUTPUTS P9, P8 INTENSITY
R/ W
OUTPUT P9 INTENSITY OUTPUT P8 INTENSITY
Write output P9, P8 intensity 0
Read back output P9, P8 intensity 1
0x14
P9I3 P9I2 P911 P9I0 P8I3 P812 P811 P810
MSB LSB MSB LSB
OUTPUTS P11, P10 INTENSITY
OUTPUT P11 INTENSITY OUTPUT P10 INTENSITY
Write output P11, P10 intensity 0
Read back output P11, P10 intensity 1
0x15
P11I3 P11I2 P11I1 P11I0 P10I3 P10I2 P10I1 P10I0
MSB LSB MSB LSB
OUTPUTS 13, P12 INTENSITY
OUTPUT P13 INTENSITY OUTPUT P12 INTENSITY
Write output P13, P12 intensity 0
Read back output P13, P12 intensity 1
0x16
P13I3 P13I2 P13I1 P13I0 P12I3 P12I2 P12I1 P12I0
MSB LSB MSB LSB
OUTPUTS P15, P14 INTENSITY
OUTPUT P15 INTENSITY OUTPUT P14 INTENSITY
Write output P15, P14intensity 0
Read back output P15, P14 intensity 1
0x17
P15I3 P15I2 P15I1 P15I0 P14I3 P14I2 P14I1 P14I0
OUTPUT O16 INTENSITY See master, O16 intensity register (Table 13).
Table 15. MAX7311, PCA9535, and PCA9555 Register Compatibility
MAX7311,
PCA9535,
PCA9555
REGISTER
ADDRESS MAX7313 IMPLEMENTATION
MAX7311, PCA9535,
PCA9555
IMPLEMENTATION
COMMENTS
Inputs P15–P0 0x00, 0x01 Inputs registers Implemented Same functionality
Outputs P15–P0 0x02, 0x03 Blink phase 0 registers Implemented Same functionality
Polarity inversion 0x04, 0x05
Not implemented; register writes are
ignored; register reads return 0x00
Implemented;
power-up default is
0x00 If polarity inversion feature
is unused, MAX7313
defaults to correct state
Configuration 0x06, 0x07 Ports configuration registers Not implemented Same functionality
No registers 0x0B, 0x0C Blink phase 1 registers Not implemented
No register 0x0E Master, O16 intensity register Not implemented
No register 0x0F Configuration register Not implemented
No registers 0x10–0x17 Outputs intensity registers Not implemented
Power-up default disables
the blink and intensity
(PWM) features