[ASAHI KASEI]
[AK7740ET]
7-2-c) CRAM data read (during reset phase)
To read out the coefficient data, input the command code and the address to be read out. After that, set SI to "H" and
SCLK to "L”. The data is clocked out from SO synchronized 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 A1h ( 1 0 1 0 0 0 0 1 )
d Address upper
e Address lower
( 0 . . . . . . A8)
(A7 . . . . . . A0)
S_RESET
RQ
SCLK
10100001
0000000A8 A7 **** A1A0
SI
D15 **** D0
D15 **** D0
SO
RDY
Reading of CRAM data
<Pre-E-01>
- 37 -
2006/10
AKM [ ASAHI KASEI MICROSYSTEMS ]
