MCF5282CVM66 Freescale, MCF5282CVM66 Datasheet - Page 312
MCF5282CVM66
Manufacturer Part Number
MCF5282CVM66
Description
Manufacturer
Freescale
Datasheet
1.MCF5282CVM66.pdf
(766 pages)
Specifications of MCF5282CVM66
Cpu Family
MCF528x
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Interface Type
CAN/I2C/QSPI/UART
Total Internal Ram Size
64KB
# I/os (max)
150
Number Of Timers - General Purpose
12
Operating Supply Voltage (typ)
3.3V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
256
Package Type
MA-BGA
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
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Fast Ethernet Controller (FEC)
The descriptor controller is a RISC-based controller providing these functions in the FEC:
The RAM is the focal point of all data flow in the Fast Ethernet controller and divides into transmit and
receive FIFOs. The FIFO boundaries are programmable using the FRSR register. User data flows to/from
the DMA block from/to the receive/transmit FIFOs. Transmit data flows from the transmit FIFO into the
transmit block, and receive data flows from the receive block into the receive FIFO.
17-2
•
•
•
•
•
Initialization (those internal registers not initialized by you or hardware)
High level control of the DMA channels (initiating DMA transfers)
Interpreting buffer descriptors
Address recognition for receive frames
Random number generation for transmit collision backoff timer
microcode)
Descriptor
Controller
Controller
(RISC +
Bus
Internal Bus
Internal Bus
DMA references in this section refer to the FEC’s DMA engine. This DMA
engine transfers FEC data only and is not related to the eDMA controller
described in
described in
Interface
Chapter 16, “DMA Controller Module,”
Chapter 21, “DMA Timers (DTIM0–DTIM3).”
Control/Status
Registers
FEC_MDIO
MDEN
MDO
Figure 17-1. FEC Block Diagram
PAD
I/O
MII
Counter RAM
MDI
FEC_MDC
MIB
NOTE
FEC_TXEN
FEC_TXD[3:0]
FEC_TXER
Interface
FIFO
RAM
RAM
Transmit
MII/7-Wire data
FEC_TXCLK
FEC_CRS
FEC_COL
nor to the DMA timers
option
Controller
FIFO
FEC_RXCLK
FEC_RXDV
FEC_RXD[3:0]
FEC_RXER
Receive
Crossbar Switch
Master Bus
Freescale Semiconductor
FEC DMA
FEC Bus
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