ak7746 ETC-unknow, ak7746 Datasheet - Page 45

• Manufacturer Part Number: ak7746
• Description: Audio With 5-channel 24-bit Input
• Manufacturer: ETC-unknow

c) Coefficient RAM writes (during reset phase)
RDY terminal goes to "H". Upon completion of writing into the CRAM, it goes to "H" to allow the next data to be input. When writing
to sequential addresses, input the data as shown below. To write discontinuous data, transition the RQ terminal from "H" to "L" and
then input the command code, address and data.
[MS0369-E00]
[ASAHI KASEI]
5 bytes of data are used to perform coefficient RAM write operations (during reset phase). When all data has been transferred, the
S_RESET
S_RESET
SCLK
SCLK
RDY
SO
RQ
RQ
SI
RDY
SI
SO
Data transfer procedure
Command code A0h ( 1 0 1 0 0 0 0 0 )
Address upper
Address lower
Data
Data
10100000
10100000
000000A9A8 A7***A1A0
(D15 . . . . . . D8)
(D7 . . . . . . D0)
( 0 0 0 0 0 0 A9 A8)
(A7 . . . . . . . A0)
Fig.8-19 Input of discontinuous address data into CRAM
Fig.8-18 Input of continuous address data into CRAM
Input of discontinuous address data into CRAM
000000A9A8
- 45 -
A7****A1A0
D15****D0
D15****D0
10100000
D15****D0
000000A9A8 A7***A1A0
[AK7746]
2004/12
D15**