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参数资料
| 型号： | MPC855TVR80D4 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | IC MPU POWERQUICC 80MHZ 357-PBGA |
| 标准包装： | 44 |
| 系列： | MPC8xx |
| 处理器类型： | 32-位 MPC8xx PowerQUICC |
| 速度： | 80MHz |
| 电压： | 3.3V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 357-BBGA |
| 供应商设备封装： | 357-PBGA（25x25） |
| 包装： | 托盘 |
2
MPC855T Communications Controller Technical Summary
MOTOROLA
MPC855T Key Features
above)
— Large on-chip transmit and receive FIFOs to support a variety of bus latencies
— Retransmission from transmit FIFO following a collision
— Automatic internal ushing of the receive FIFO for runts and collisions
— Off-chip buffer descriptor rings of user-denable size that allow nearly unlimited exibility in
management of transmit and receive buffer memory
10/100-Mbps media access control (MAC) features
— Address recognition
– Broadcast
– Single station address
– Promiscuous mode
– Multicast hashing
— Full support of the media-independent interface
— Interrupt modes
– Per-frame
– Per-buffer (selectable buffer interrupt functionality using the I bit is not supported)
— Automatic interrupt vector generation for receive and transmit events
Categories: transmit interrupt, receive interrupt, non-time critical interrupt
— Ethernet channel bursts data to/from external memory
ATM support
— Compliant with ATM forum UNI 4.0 specication
— Cell processing up to 50–70 Mbps at 50-MHz system clock
— Cell multiplexing/demultiplexing
— Support of AAL5 and AAL0 protocols on a per-VC basis
– AAL0 support enables OAM and software implementation of other protocols)
— ATM pace control (APC) scheduler, providing:
– Direct support of constant bit rate (CBR)
– Direct support of unspecied bit rate (UBR)
– Control mechanisms enabling software support of available bit rate (ABR)
— Support for two types of physical interfaces
– UTOPIA (10/100-Mbps is not supported with this interface)
– Byte-aligned serial (e.g. T1/E1/ADSL)
— UTOPIA-mode ATM supports:
– UTOPIA level 1 master with cell-level handshake
– Multi-PHY (up to 4 physical layer devices)
– Connection to 25 Mbps, 51 Mbps, or 155 Mbps framers
– UTOPIA clock rates of 1:2 or 1:3 system clock rates
— Serial-mode ATM connection supports:
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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