ml7084-001 Oki Semiconductor, ml7084-001 Datasheet - Page 105

• Manufacturer Part Number: ml7084-001
• Description: 4ch Voip Codec
• Manufacturer: Oki Semiconductor

(23) CR23
B7–B0 : Reserved bits. Access prohibited.
(24) CR24
B7 : Speech codec-CH0 control register
B6 : Speech codec-CH1 control register
B5 : Decode output control register
OKI Semiconductor
setting can be
setting can be
Mode where
Mode where
Initial value
Initial value
0 : Stops speech codec-CH0
1 : Operates speech codec-CH0
0 : Stops speech codec-CH1
1 : Operates speech codec-CH1
This bit controls the first decode output timing after starting a speech codec.
If the first received data has been written and the tWAIT wait time has elapsed after starting a speech codec, this
bit can be set to “1”. Decode output will start as shown below, once this bit is set to “1”.
When G.711 (μ-law/A-law) is selected:
Note that by making a setting in the internal data memory for controlling the decode output start offset time
(DEC_ONTIM), the time until the start of the decode output descrirved above can be delayed in 0.125 ms.
(DEC_ONTIM settable range: 0.0 ms to 32 ms)
Additionally, when stopping a speech codec, also clear this bit to “0”.
Note:
As the tWAIT wait time, at least 2.0 ms is required after starting a speech codec.
Simultaneously with the start of a speech codec, DEC_OUTON can also be set to “1”.
However, in this case, set in advance so that the internal data memory for controlling the decode output start
offset time (DEC_ONTIM) is between 0010h (2.0 ms) and 0100h (32 ms).
Both upon completion of writing the first received data and upon elapse of the above offset time after starting a
speech codec, the decoder starts decode output.
changed
changed
CR23
CR24
If the PLC function is enabled, silence data for approximately 3.75 ms is output after this bit is set to “1”, and
then the decoder starts decode output.
If the PLC function is disabled, the decoder starts decode output after setting this bit to “1”.
SC_CH
0EN
B7
B7
I/E
⎯
⎯
$
0
SC_CH
1EN
B6
B6
I/E
⎯
⎯
$
0
OUTON
DEC_
B5
B5
⎯
⎯
/E
$
0
PLCEN
B4
B4
⎯
⎯
$
I/
0
_SEL
SCIF
B3
B3
⎯
⎯
$
I/
0
B2
B2
⎯
⎯
⎯
$
#
0
B1
B1
⎯
⎯
⎯
$
#
0
FEDL7224-001FULL-01
MGEN_
FREN
ML7224-001TC
B0
B0
I/E
⎯
⎯
$
0
105/225
R/W
R/W
R/W
/