MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 366

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

Fast Ethernet Controller (FEC)
The descriptor controller is a RISC-based controller that provides the following functions in the
FEC:
19-2
• Initialization (those internal registers not initialized by the user 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
MDEN
MDO
microcode)
Descriptor
EMDIO
Controller
Controller
(RISC +
PAD
Bus
I/O
MII
MDI
SIF
EMDC
Figure 19-1. FEC Block Diagram
Counters
MCF5235 Reference Manual, Rev. 2
CSR
MIB
RAM I/F
RAM
ETXEN
ETXD[3:0]
ETXER
Transmit
Controller
MII/7-WIRE DATA
OPTION
FIFO
ETCLK
ECRS,ECOL
Receive
ERXCLK
ERXDV
ERXD[3:0]
ERXER
DMA
Freescale Semiconductor
FEC Bus