AK7714 Datasheet, PDF (33/48 Pages) Asahi Kasei Microsystems – 20-Bit Audio Codec with DSP and Delay RAM

[ASAHI KASEI]
[AK7714]
d) Offset RAM write (during reset phase)
Data comprising a set of 3 bytes ( in case of 1-word Offset RAM writting ) is used to perform offset RAM write operation
(during the reset phase). In this case the operation must be started from address 0. When data of continuous
{ { addresses is written, input the data( ² to ³ ) of after the next address as is. (No command code is required and
RESET and WRQ hold to “L”.) When all data has been transferred, the RDY terminal goes to "L". Upon completion of
writing into the OFFRAM, it goes to "H" to allow the next data to be input.
(For RESET, operate both CODEC RESET and DSP RESET simultaneously.)
Data transfer procedure
{¹ Command code
{² Data
{³ Data
(10010000)
(0000 D11 D10 D9 D8)
(D7......D0)
Input of data into OFFRAM
M0018-E-00
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‘98/07