AK7746 Datasheet, PDF (49/62 Pages) Asahi Kasei Microsystems – Audio DSP with 5-channel 24-bit ADC and Input Mux

[ASAHI KASEI]
[AK7746]
b) Program RAM read (during reset phase)
To read data written into PRAM, input the command code and the address you want to read out. After that, set SI to "H" and
SCLK to "L". The data is then clocked out from SO in synchronization with the falling edge of SCLK. (Ignore the RDY operation that
will occur in this case.)
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
cCommand code input C1h ( 1 1 0 0 0 0 0 1 )
dRead address input MSB ( 0 0 0 0 0 0 A9 A8)
eRead address input LSB (A7 . . . . A0)
S_RESET
RQ
SCLK
SI
SO
RDY
11000001 000000A9A8 A7 **** A1 A0
D31 **** D0 D31 **** D0
Fig.8-24 Reading of PRAM data
[MS0369-E00]
- 49 -
2004/12