ml7084-001 Oki Semiconductor, ml7084-001 Datasheet - Page 37

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

(3) Transmit and Receive Buffers
A. Number of embedded transmit and receive buffers
B.
C.
OKI Semiconductor
G.711 (64 kbps)
Speech CODEC
This LSI is embedded with two systems of transmit and receive buffers: TX-FIFOa/RX-FIFOa for CH0a/CH1a,
Control parameters of transmit and receive buffers
buffers for CH0a/CH1a) and TX-FIFOb/RX-FIFOb (transmit and receive buffers for CH0b/CH1b).
Transmit and Receive Buffer Sizes
one buffer can buffer 10 or 20 milliseconds’ worth of data.
width and buffering time.
and TX-FIFOb/RX-FIFOb for CH0b/CH1b.
Table 2 lists the controllable parameters of the transmit and receive buffers.
The control parameters listed below can be set individually for TX-FIFOa/RX-FIFOa (transmit and receive
The transmit and receive buffers have a double buffer configuration of the FIFO (First In First Out) type, and
As shown in Table 3, the number of FIFO words is automatically changed by the settings of the FIFO data
Buffering time
Access method
FIFO data width
Table 3 Buffer Size and Number of Words of Transmit and Receive Buffers
Item
Table 2 Controllable Parameters of Transmit and Receive Buffers
Tx
Rx
Buffer size
80 bytes
10 ms / 20 ms
10 ms / 20 ms
16 bits / 8 bits
Frame / DMA
Changeable
parameter
10 ms mode
40 words
16-bit
16 bits
Frame
10 ms
10 ms
80 words
value
Initial
8-bit
The number of transmit buffer words is
automatically changed by the setting of the
buffering time on the transmitter side.
The number of receive buffer words is
automatically changed by the setting of the
buffering time on the receiver side.
The number of words is automatically changed
by the data width.
Buffer size
160 bytes
20 ms mode
Remarks
80 words
FEDL7224-001FULL-01
16-bit
ML7224-001TC
160 words
8-bit
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