Panasonic MN88472: Difference between revisions
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=== Demod probe === |
=== Demod probe === |
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* Read register 0xFF in T2 bank |
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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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The answer should be 0x02. |
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=== TS mode === |
=== TS mode === |
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Revision as of 02:36, 31 October 2013
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
- Read register 0xFF in T2 bank
The answer should be 0x02.
TS mode
How to set chip ts mode.
Parallel TS with fixed clock
- Write 0x00 to register 0x08 in T2 bank
- Write 0xE1 to register 0xD9 in T bank
Parallel TS with variable clock
- Write 0x00 to register 0x08 in T2 bank
- Write 0xE3 to register 0xD9 in T bank
Serial TS with variable clock
- Write 0x1D to register 0x08 in T2 bank
- Write 0xE3 to register 0xD9 in T bank