cx28224 Mindspeed Technologies, cx28224 Datasheet - Page 93

• Manufacturer Part Number: cx28224
• Description: Cx28224/5/9 Inverse Multiplexing For The Atm Ima Family
• Manufacturer: Mindspeed Technologies

CX28224/5/9 Data Sheet
5.2.5.2
Figure 5-7. DSL Mode
28229-DSH-001-D
General Notes:
(1)
(2)
3. TxSync indicates the Start of Cell.
4. Tx and Rx are asynchronous.
The CX28229 operates at data rates up to 10 Mbps.
Polarity is shown as active low in above figure.
Rx Serial Data
Tx Serial Data
SPRxSync
SPTxSync
Bit Clock
(2)
(1)
DSL Mode Interface
The CX2822x has a DSL mode interface as illustrated in
allows connection with framers that require frame synchronization. The CX2822x
receives a data stream from the external framer, performs byte-alignment and cell
delineation, and passes the ATM cells to the ATM layer device. The CX2822x
performs the inverse process on transmitted data. In this mode, the framer must ensure
that only ATM cells are present in the data stream.
DSL Modem
MSB
RxData
TxSync
TxData
Mindspeed Technologies
TxClk
Transparent Cell Transport
Rx Serial Data
Tx Serial Data
RxSync
Clock
SPRxData
SPTxData
SPRxSync
SPTxClk
SPRxClk
SPTxSync
™
CX28229
PORT X
Figure
Transmission Convergence Block
5-7. This mode
500027_014
5
-
11