mpc8544e Freescale Semiconductor, Inc, mpc8544e Datasheet - Page 6

• Manufacturer Part Number: mpc8544e
• Description: Mpc8544e Powerquicc Iii Integrated Processor
• Manufacturer: Freescale Semiconductor, Inc

MPC8544E Overview
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— Buffer descriptors backward compatible with MPC8260 and MPC860T 10/100 Ethernet
— RMON statistics support
— 10-Kbyte internal transmit and 2-Kbyte receive FIFOs
— MII management interface for control and status
— Ability to force allocation of header information and buffer descriptors into L2 cache
OCeaN switch fabric
— Full crossbar packet switch
— Reorders packets from a source based on priorities
— Reorders packets to bypass blocked packets
— Implements starvation avoidance algorithms
— Supports packets with payloads of up to 256 bytes
Integrated DMA controller
— Four-channel controller
— All channels accessible by both the local and remote masters
— Extended DMA functions (advanced chaining and striding capability)
— Support for scatter and gather transfers
— Misaligned transfer capability
— Interrupt on completed segment, link, list, and error
— Supports transfers to or from any local memory or I/O port
— Selectable hardware-enforced coherency (snoop/no snoop)
— Ability to start and flow control each DMA channel from external 3-pin interface
— Ability to launch DMA from single write transaction
PCI controller
— PCI 2.2 compatible
— One 32-bit PCI port with support for speeds from 16 to 66 MHz
— Host and agent mode support
— 64-bit dual address cycle (DAC) support
— Supports PCI-to-memory and memory-to-PCI streaming
— Memory prefetching of PCI read accesses
— Supports posting of processor-to-PCI and PCI-to-memory writes
— PCI 3.3-V compatible
— Selectable hardware-enforced coherency
– Broadcast address (accept/reject)
– Hash table match on up to 512 multicast addresses
– Promiscuous mode
programming models
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
Preliminary—Subject to Change Without Notice
Freescale Confidential Proprietary
Freescale Semiconductor