I 2 C Registers; Enabling I 2 C Pass-Through Channels; Control Channel Programming Example - Analog Devices MAX96752 User Manual

On power-up the device should be set to I
and ensuing I C sections assume the device has been configured for I
2
By default, the primary I
One can disable the primary control channel's line access by setting field DIS_LOCAL_CC in register 0x1. One can
also disable access to remote device control by setting field DIS_REM_CC in register 0x1.
I C Registers
2
Below table has registers that are needed to enable/disable primary and pass-through I
Table 11.
MAX96752 I
Register Bits
Address
0x01 4
0x01 5
0x02 5
0x02 4
0x03 4
Enabling I 2 C Pass-Through Channels
When enabling a I C pass-through channel, other MFP functions must be disabled first.
2
With MAX96752 the user can bring out the first pass-through I
The second pass-through I2C channel (SDA2_RX2/SCL2_TX2) can also be programmed on pin 27/ pin 29. Pass-
through channels are enabled by setting the fields IIC_1_EN and IIC_2_EN in register 0x1.

Control Channel Programming Example

Below example shows the register writes needed to enable I
MAX96752.
#DES I2C Address=0x90
#SER I2C Address=0x80
#Enable I2C Pass-through channel 1 on DES
0x90,0x0001,0x12
#Enable I2C Pass-through channel 1 on SER
0x80,0x0001,0x58
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2 C mode via the CFG0 latch. The function names in the above MFP table
2 C control channel lines are brought out on MFP8 and MFP9 for SDA and SCL, respectively.
2 C Registers
POR
0b0 IIC_1_EN, Bit [4] Enable I
0b0 IIC_2_EN, Bit [5] Enable I
0b0 DIS_LOCAL_CC, Bit [5]: Disable primary I
SDA and SCL pins
0b0 DIS_REM_CC, Bit [4]: Disable access to remote device control-channel over
GMSL link
0b0 I2CSEL, Bit [4] select between UART and I
Bootstrapped with the I2CSEL pin
C mode.
2
Decode
C pass-through channel 1
2
C pass-through channel 2
2
C Control Channel connection to
2
C for Primary Control Channel.
2
C channel (SDA1_RX1/SCL1_TX1) on pin 40/pin 42.
2
C pass-through channel 1 on MAX96751 and
2
C channels.
2
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