參數(shù)資料
型號(hào): T8207
英文描述: ATM Interconnect
中文描述: 自動(dòng)柜員機(jī)互連
文件頁(yè)數(shù): 1/158頁(yè)
文件大?。?/td> 4700K
代理商: T8207
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Advance Data Sheet
September 2001
CelXpres
T8207
ATM Interconnect
1
Product Overview
1.1
Features
I
> OC-3 transport capability
I
UTOPIA level 1 and 2 (8-bit) cell-level handshake
interface (ATM or PHY layers)
I
32 multi-PHY (MPHY) operation
I
Shared UTOPIA mode
I
Egress SDRAM buffer support to expand UTOPIA
output priority queues for 32K to 512K cells:
— 64 queues configurable up to four queues per
PHY with programmable sizes
— Programmable number of UTOPIA output
queues with four levels of priority
I
Support of ATM traffic management via partial
packet discard (PPD), forward explicit congestion
notification (FECN), and the cell loss priority (CLP)
bit
I
Programmable slew rate GTL+ I/O:
— 1.7 Gbits/s cell bus operation
— Programmable as bus arbiter
I
Flexible per port cell counters
I
Cell header translation and insertion with virtual
path identifier (VPI) and virtual channel identifier
(VCI) via external SRAM (up to 64K entries)
I
Support of network node interface (NNI) and user
network interface (UNI) header types with optional
generic flow control (GFC) insertion
I
Programmable operations and maintenance and
resource management (OAM/RM) cell routing
I
Support of multicast and broadcast cells per PHY
I
Programmable priority for control/data cells trans-
mission onto cell bus
I
Eight GPIO pins
I
JTAG support
I
Optional monitoring of misrouted cells
I
Microprocessor interface, supporting both
Motor-
ola
and Intel
modes (multiplexed and nonmulti-
plexed)
I
Control cell transmission and reception through
microprocessor port
I
Single 3.3 V power supply
I
3.3 V TTL I/O (5 V tolerant)
I
272-pin PBGA package
I
Industrial temperature range (–40 °C to +85 °C)
I
Hot insertion capability
I
Compatible with Transwitch CellBus
1.2
Applications
I
Asymmetric digital subscriber line (ADSL) digital
subscriber line access multiplexer (DSLAMs)
I
Access gateways
I
Access multiplexers/concentrators
I
Multiservice access equipment platforms
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