mt90528ag2 Zarlink Semiconductor, mt90528ag2 Datasheet - Page 14

• Manufacturer Part Number: mt90528ag2
• Description: 28-port Primary Rate Circuit Emulation Aal1 Sar
• Manufacturer: Zarlink Semiconductor

2.0
2.1
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2.2
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2.3
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2.4
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High-capacity AAL1 CES SAR device with 28 primary rate TDM ports operating at DS1 or E1 rates.
Supports major modes of Circuit Emulation Services (CES) for DS1 and E1 as per af-vtoa-0078.000:
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Supports AAL1 Trunking as per af-vtoa-0089.000:
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Compliant with ITU-T Rec. I.363.1
Supports mixed DS1/E1 operation
Supports mixed UDT/SDT operation
Total clock recovery solution integrated on-chip
Supports non-CBR data cells and OAM cells destined for microprocessor with Transmit and Receive Data
Cell Buffers
16-bit microprocessor port, configurable to Motorola or Intel timing
Indirect reads and writes possible to internal and external memory blocks
Programmable interrupts for control and statistics
Allows access to internal registers and memory for initialization, control and statistics
Allows access to external RAM for initialization, control, and observation
Supports common, commercially-available, no-latency flow-through and pipelined synchronous SRAM (ZBT,
NoBL, NtRAM)
Supports common SSRAM memory sizes - 128 K x 16, 256 K x16, 512 K x 16 and 1 M x 16; 128 K x 18,
256 K x 18, 512 K x 18 and 1 M x 18 (parity is optional)
Flexible TDM port allows operation with a wide selection of framers, LIUs, switches and multiplexers.
Twenty-eight independently-timed, highly configurable, TDM interfaces can operate using:
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Key Functionality
Microprocessor Interface
External Memory Interface
TDM Interface
Logical Nx64 Structured Service, using 2.048 Mbps TDM bus
DS1 Nx64 Basic Service
DS1 Nx64 Service with CAS
E1 Nx64 Basic Service
E1 Nx64 Service with CAS
DS1 Unstructured Service
E1 Unstructured Service
Up to 128 TDM channels can be carried per VCC (up to 896 TDM channels per device)
bit-clock rate (Unstructured CES)
framed ST-BUS or Generic TDM bus (Structured CES - independent mode)
common TDM backplane clock using ST-BUS or Generic TDM bus (Structured CES - backplane mode)
Features
Zarlink Semiconductor Inc.
MT90528
14
Data Sheet