ASAHI KASEI
SERIAL ACCESS
Serial access can be done by CSN staying “L” during the serise of read cycle
[AK2307/LV]
CSN
SCLK
DATA
Z
1
2
3
4
5
6
7
8
9
16
1
2
3
4
8
9
15
16
1
1
0
0
0
0
0
Z
D7
D0
Z
1
1
1
0
Z
Read
Instruction
Address
”0000”
Read data
READ
EXCUTED!
Read
Instruction
READ
EXCUTED!
DISCORD OF INSTRUCTION CODE
CSN
SCLK
DATA
Z
1
2
3
4
5
6
7
8
9
16
I2
I1
I0
IA3
A2
A1 A0
Address
Z
IInstructions except specified
0bb
10b
(b=0 or 1)
WRITE/READ
NOT EXCUTED!
Z
DATA pin: Input mode
(Hi-Z)
Register Map
Register Type : Read/ Write
Add
(Hex)
0
1
Register Name
(Functions)
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
Path Control 1
RX_
RX Pad
Side
PCM_1
PCM_0
u/A-law SW10
SW9
Path Control 2 &
A_gain
-9dB
Tone
PCM Control
2
0
TX Attenuator
VOL1
TX Digital Volume Control
3
RX Volume
Side Tone Attenuator
RX Digital Volume Control
4
0
0
0
0
VOL4
Tone Volume Control
5
0
0
Tone Freq. Select
Tone Generator 1
6
0
L-ATT
Tone Freq. Select
Tone Generator 2
7
0
0
0
VOL2
RX Handset Volume Control
8
0
0
0
VOL3
RX Headset Volume Control
9
-
-
-
-
VOL5
RX Speaker Volume Control
A
-
AGC_ON
Falling time
Rising time
Threshold level
AGC Control
B–F
-
-
-
-
-
-
-
-
Reserved for test use
Address “1” ; PCM_1/2 ---- Selection of the PCM interface Mode(Long/Short frame, AK130-1,AK130-2, 16bit linear)
Address ”6” ; L-ATT ---- -6dB attenuation for Tone generator-L output in case of DTMF tone generation.
D7
D6
D5
D4
D3
D2
D1
D0
Bits in which “0” is filled are for test mode activation. Please fill the data “0” for the normal operation.
Bits in which “-“ is filled are for test use and can not write the data from CPU interface. In case the read
operation, data “0” are read from CPU interface.
MS0190-E-05
9
2005/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
