Introduction
MPC5566 Microcontroller Reference Manual, Rev. 2
1-10 Freescale Semiconductor
• Voltage regulator controller (VRC)
Provides a low-cost solution to power the core logic; it reduces the number of power supplies
required from the customer power supply chip
• POR block
Provides initial reset condition up to the voltage at which pins (RESET) can be read safely; it does
not guarantee the safe operation of the chip at specified minimum operating voltages
• Fast Ethernet controller (FEC)
Only the 416 BGA package has a fast Ethernet controller (FEC) module that supports the following
features:
—IEEE® 802.3 MAC (compliant with IEEE® 802.3 1998 edition)
— Built-in FIFO and DMA controller
— Fully software compatible to the FEC module of Freescale's industry standard PowerQUICC
communications controller
— Full compliance with the IEEE 802.3 standard for 10/100 base-T
— Support for different Ethernet physical interfaces:
–IEEE® 802.3 MII
– 10Mbps 7-wire interface (industry standard)
— MII management interface for control and status
— Large on-chip transmit and receive FIFOs to support a variety of bus latencies
— Retransmission from the transmit FIFO after a collision
— Automatic internal flushing of the receive FIFO for runts and collisions
— External BD tables of user-definable size allow nearly unlimited flexibility in management of
transmit and receive buffer memory
— Address recognition for broadcast, single-station address, promiscuous mode, and multicast
hashing
— Ethernet channel uses DMA burst transactions to transfer data to and from external/system
memory
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