MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 286

• 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

DMA Controller Module
14.1.2 Features
The DMA controller module features are as follows:
14-2
• Four independently programmable DMA controller channels
• Auto-alignment feature for source or destination accesses
• Dual-address transfers
• Channel arbitration on transfer boundaries
Read Data Bus
Throughout this chapter “external request” and DREQ are used to
refer to a DMA request from one of the on-chip UARTS, DMA timers,
eTPU, or DREQ signals. For details on the connections associated
with DMA request inputs, see
(DMAREQC).”
Data Path
Internal
Bus
Requests
Channel
Write Data Bus
Figure 14-1. DMA Signal Diagram
Channel 0
DREQ0
MCF5235 Reference Manual, Rev. 2
DAR0
BCR0
DCR0
DSR0
SAR0
Data Path
Control
Channel
Enables
Control
Channel 1
DREQ1
MUX
BCR1
DCR1
DSR1
SAR1
DAR1
Section 14.3.1, “DMA Request Control
NOTE
Arbitration/
Control
MUX
Channel 2
Channel
Attributes
DREQ2
BCR2
DCR2
DSR2
SAR2
DAR2
Current Master Attributes
System Bus Address
System Bus Size
Channel 3
DCR3
SAR3
DAR3
BCR3
DSR3
eTPU
Interrupts
Bus Interface
Freescale Semiconductor
Bus Signals
Registered