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Question for ADV7842 by connecting external memory

Question asked by Tsudapi on Oct 27, 2017
Latest reply on Oct 30, 2017 by JeyasudhaMuthuPerumal

Dear all,
I have one question of ADV7842.
Please tell me about the following.


Our customers consider using ADV7842 by connecting external memory.
On page 410 of the "UG-214 Hardware User Guide" there is an example of using 128 Mb and 256Mb DDR memory.

Please advise us of more details of these registers.
- 0x74 (SDP IO Map)
- 0x75 (SDP IO Map)
- 0x79 (SDP IO Map)
- 0x7A (SDP IO Map)
- 0x7B (SDP IO Map)


They plan to connect the following memory device, please advise us of the register setting values.
Is it same as Table 83 and 84?

- DDR1 128Mbit Winbond W9412G6KH-5
- DDR1 256Mbit Winbond W9425G6KH-5


Best regards