ml7074a-004 Oki Semiconductor, ml7074a-004 Datasheet - Page 24

• Manufacturer Part Number: ml7074a-004
• Description: Voip Codec
• Manufacturer: Oki Semiconductor

Example of settings in the initialization mode
⋅ CR15 = 40h * This is mandatory.
⋅ CR6=0Fh,CR7=FFh,CR8=00h,CR9=01h,CR1=80h (Address : 0FFFh, Data : 0001h)
* This is mandatory. As for how to set them, refer to Method of Accessing and Controlling Internal Data Memory.
⋅ CR11 = 00h (Frame/10 ms/16B/Speech CODEC = G.729.A)
⋅ Various settings
⋅ CR0 = 09h (OPE_STAT = “1”)
EXAMPLE OF CONFIGURATION
Analog I/F mode
OKI Semiconductor
CLKSEL
GSX0
AIN0P
PCMO
AIN0N
AIN1N
VFRO0
VFRO1
AVREF
SYNC
GSX1
BCLK
PCMI
10kΩ
10kΩ
AMP0
AMP1
AMP2
AMP3
10kΩ
10kΩ
Function stopped
Cannot be used
Serial I/F
S/P
P/S
VREF
Decoder
A/D
D/A
Linear PCM Codec
G.711
Encoder
Codec
G.711
BPF
LPF
STGAIN
OSC
PLL
Rout
Sin
LPAD
+
AFF
CKGN
Echo Canceller
-
ATTr
ATTs
Center
Clip
MCK
SYNC(8kHz)
GPAD
FSK_GEN
Sout
Rin
Power
TONE_GEN0
TONE_GEN1
(TONEA/B)
(TONEC/D)
TXGAIN
FGEN_FLAG
RXGAIN
DPGEN
DPDET
TIMER
TONE_DET0
TONE_DET1
Speech Codec
DTMF_REC
Decoder
Encoder
G.729.A
G.729.A
DTMF_CODE[3:0]
G.711
G.711
CR17-B0(GPO0)
CR16-B0(GPI0)
DP_DET
FGEN_FLAG
TONE0_DET
TONE1_DET
DTMF_DET
DP_DET
TONE0_DET
TONE1_DET
DTMF_DET
DTMF_CODE[3:0]
FEDL7074-003DIGEST-01
Bus Control Unit
Frame/DMA
Controller
Register
Control
Buffer0
Buffer1
Buffer0
Buffer1
RX
RX
INT
TX
TX
ML7074-004GA
16b
8b
A0-A7
D0-D15
CSB
RDB
WRB
FR0B
FR1B
ACK0B
ACK1B
INTB
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