Figure 4 Sending SPI Commands
/CS
~~
SCLK
~~
TfCS
TpSCLK
DI
Op4 Op3 Op2 Op1
~~
APR6008
~~
ThiSCLK
TloSCLK
A2
A1
Tnext1, Tnext2, Tnext3, Tnext4
~~
TrCS
A0
~~
T suDI
ThDI
Figure 5 OpCode Format
First bit shifted in
Last bit shifted in
O p4 O p3 O p2 O p1 O p0 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
OpCode Command
OpCode Parameter
Figure 6 Opcode Stream Timing
SCLK
/CS
DI
Current Com mand
Tnext1,Tnext2,Tnext3,Tnext4
Next Command
Page 4
Voice Recording & Playback Device
Revision 2.1