m28529-12 Mindspeed Technologies, m28529-12 Datasheet - Page 81
m28529-12
Manufacturer Part Number
m28529-12
Description
Inverse Multiplexing For Atm Ima Family
Manufacturer
Mindspeed Technologies
Datasheet
1.M28529-12.pdf
(309 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
M28529-12
Manufacturer:
MINDSPEE
Quantity:
1 238
- Current page: 81 of 309
- Download datasheet (3Mb)
1.7
Source loopback checks that the host (the ATM layer) is communicating with the PHY. It is enabled and disabled in
bit 5 of the PMODE register (0x04). When source loopback is enabled for a given port, all data transmitted by the
M2852x on that port is also looped back through the Receive Line Interface. Data from the framer interface is
ignored.
There are two different modes of source loopback, source loopback mode 0 and source loopback mode 1. The
loopbacks work in TC enabled modes.
1.7.1
During source loopback mode 0, the port is automatically placed in General Purpose mode and an internal clock
(IMA_SysClk/2 for IMA mode, atmUTxClk for TC Only mode) is used as the clock to loop back cells. As a result of
the automatic mode switch and clock used, the data on the Tx serial lines will be corrupted.
1.7.2
During source loopback mode 1, the port is not placed in General Purpose mode (the serial framing remains as
configured) and the SPTxCLK and SPTxSync device input signals are routed along with the SPTxDATA to the TC
receive port circuit.
Figure 1-12. Source Loopback Diagram (For simplicity the diagram shows the TC Block Only.)
28529-DSH-001-K
SPTxSync
SPTxData
* See Note
SPTxClk
Interface
Framer
(Line)
Source Loopbacks (UTOPIA-to-Serial Configuration Only)
Source Loopback Mode 0
Source Loopback Mode 1
* SPTxData will be corrupted in in Source Loopback mode 0
This segment is replicated for ports 0-31
Loopback
Control
TC Transmit Port
TC Receive Port
Mindspeed Proprietary and Confidential
Mindspeed Technologies
Alignment
Cell
ATM Cell Transmitter
ATM Cell Receiver
VPI/VCI Screening
Cell Validation
®
4-cell
FIFO
4-cell
FIFO
Interface
Transmit
UTOPIA
Interface
UTOPIA
Receive
Level 2
Level 2
Host
Host
Functional Description
Interface
UTOPIA
Level 2
atmURxSOC
atmURxData[15:0]
atmURxPrty
atmUTxEnb*
atmUTxSOC
atmUTxData[15:0]
atmUTxPrty
atmUTxAddr[4:0]
atmURxClAv
atmURxEnb*
atmURxAddr[4:0]
atmUTxClAv
atmURxClk
atmUTxClk
66
Related parts for m28529-12
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ima-32 Inverse Multiplexing For Atm
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Framer SDH ATM/POS/STM-1 SONET/STS-3 3.3V 272-Pin BGA
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
RS8234EBGC ATM XBR SAR
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
ATM SAR 155Mbps 3.3V ABR/CBR/GFR/UBR/VBR 388-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
ATM IMA 8.192Mbps 1.8V/3.3V 484-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
ATM SAR 622Mbps 3.3V ABR/CBR/GFR/UBR/VBR 456-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
RS8234EBGD ATM XBR SAR, ROHS
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
3-PORT T3/E3/STS-1 LIU WITH/ DJAT IC (ROHS)
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
ATM IMA 800Mbps 1.8V/3.3V 256-Pin BGA
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Framer SDH ATM/POS/STM-1 SONET/STS-3 3.3V 272-Pin BGA
Manufacturer:
Mindspeed Technologies
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet:
Part Number:
Description:
Manufacturer:
Mindspeed Technologies
Datasheet: