Panasonic MN88472

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NM88472

The NM88472 is a DVB-T/DVB-T2/DVB-C demodulator chip manufactured by Panasonic.

I2C Adressing

The chips has 3 I2C addresses, one for each demodulator bank:

8 bit (7 bit)
0x38  (0x1c) - DVB-T2
0x30  (0x18) - DVB-T
0x34  (0x1a) - DVB-C

Demod Initialization

Load init reg values for all 3 banks (T2/T and last C)
Prepare DVB-T bank for firmware upload
Load firmware for demod
Check parity

Demod probe

The T2 demod bank have a register that can be used to id the chip. Doing a read on register 0xFF should return the answer 0x2.

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Demodulator