cx28500 Mindspeed Technologies, cx28500 Datasheet - Page 32

• Manufacturer Part Number: cx28500
• Description: Cx28500 Multichannel Synchronous Communications Controller
• Manufacturer: Mindspeed Technologies

Figure 1-7.
The TSBUS interface provides multiple asynchronous paths where all TSBUS frames run at 51.84 Mbps. The
supported TSBUS framer configurations that are mapped into and from VSPs are as follows:
•
•
•
The supported TSBUS frame structures are DS1s, E1s mapped via DS2, VT1.5, VT2.0, VC-11, VC-12.
The following mixed mappings are also supported by selectively configuring each framer:
•
•
•
28500-DSH-002-C
There are 28 PDH framers and 28 SONET/SDH framers. Either of these two categories of framers can be
mapped directly to the VSPs for a given configuration.
When using the PDH framers, each framer can be independently configured as a DS1 framer or as an E1
framer.
The SONET/SDH category of framers has two subcategories as the name implies. When using the SONET/
SDH framers, they all have to be configured as either SONET framers (one subcategory) or as SDH framers
(the other subcategory). The configurations of the SONET/SDH framers cannot have mixed subcategories.
When configuring for the SONET subcategory of framers, each framer can be independently configured as a
VT1.5 framer or as a VT2.0 framer. The SDH subcategory of framers is similarly configured. Each SDH framer
can be independently configured as a VC-11 framer or as an E1 framer.
DS1s and E1s extracted from mixed DS2s via the PDH framers
DS1s and E1s extracted from mixed VTGs via the SONET framers
DS1s and E1s extracted from mixed VTGs via the SONET framers
Memory
System
System
Components
Host
Memory
Optional
Local
Local
Host
System Overview
Local
Bus
Bridge
Local
Bus
PCI
PCI
Bus
Mindspeed Proprietary and Confidential
Interface
Mindspeed Technologies
JTAG
Host
EBUS
Expansion
Interface
(EBUS)
Bus
RxDMA
TxDMA
CX28500
Processors
(TSLP
RSLP)
HDLC
Serial
Line
®
Interface 31
Interface 0
Interface
Serial
Serial
(SIU)
Serial
Unit
Interface 30
Interface 31
Interface 0
Physical
Physical
Physical
Introduction
500052_008
17