AK2308LV_05 Datasheet, PDF (8/31 Pages) Asahi Kasei Microsystems – SPEECH CODEC for Digital Key telephone

ASAHI KASEI
SERIAL ACCESS
Serial access can be done by CSN staying “L” during the serise of read cycle
CSN
[AK2308LV]
SCLK
123456789
16
DATA ^Z 1 1 0 0 0 0 0 ^Z D7
D0
Z
Read
Instruction
Address
”0000”
Read data
READ
EXCUTED!
1234
1110
Read
Instruction
89
15 16
Z
READ
EXCUTED!
DISCORD OF INSTRUCTION CODE
CSN
SCLK
123456789
16
DATA ^Z I2 I1 I0 IA3 A2 A1 A0
Z
IInstructions except specified
0bb
10b
(b=0 or 1)
Address
WRITE/READ
NOT EXCUTED!
Z
DATA pin: Input mode
(Hi-Z)
Register Map
Register Type : Read/ Write
Add
D7
D6
D5
D4
D3
D2
D1
D0
(Hex)
Register Name
(Functions)
0
-
1
-
SW7
-
SW6
-
SW5
-
SW4 SW3 SW2 SW1
-
PCM_1 PCM_0 u/A-law
Path Control
PCM Control
2
-
3
-
-
-
Side
Tone
-
TX_pad
Side Tone Attenuator
TX Digital Volume
Side Tone Control
Side Tone Digital Attenuator Gain
TX Voice Path Gain Control
4
-
-
-
5
-
-
-
-
6
-
-
VOL 3
RX Digital Volume
VOL 1
VOL 2
RX Digital Volume Control
RX Speaker Volume Control
RX Handset Volume Control
7–F
-
-
-
-
-
-
-
-
Reserved for test use
•Address “1” ; PCM_0/1 ---- Selection of the PCM interface Mode(Long/Short frame, AK130 -1,AK130-2, 16bit linear)
•Bits with “-” in the flame are for test mode activation. Please fill the data “0” for the normal operation.
These bits are for test use so that cannot write the data from CPU interface and read operation, data “0” are read from
CPU interface.
•Each bit is set as “Default value” written in the following related sections after power on reset.
•Explanatory of each bits are described in following pages.
MS0227-E-01
8
2005/12