AK7746 Datasheet, PDF (51/62 Pages) Asahi Kasei Microsystems – Audio DSP with 5-channel 24-bit ADC and Input Mux

[ASAHI KASEI]
[AK7746]
d) OFRAM data read (during reset phase)
The written offset data can be read out during the reset phase. To read it, input the command code and the address you want
to read. After that, set SI to "H" and SCLK to "L". This completes preparation for outputting the data. Then set SI to "L", and the data
is clocked out in synchronization with the falling edge of SCLK. If there are continuous addresses to be read, repeat the above
procedure starting from the step where SI is set to “H”.
Data transfer procedure
c Command code 91h ( 1 0 0 1 0 0 0 1 )
d Address
( 0 0 A5 . . . . A0)
S_RESET
RQ
SCLK
SI
SO
RDY
10010001 00 A5 **** A0
D12 *** D1 D0
D12 *** D1 D0
D12*** D1 D0
Fig.8-26 Reading of OFRAM data
[MS0369-E00]
- 51 -
2004/12