MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 533

• 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

Chapter 26
UART Modules
26.1
This chapter describes the use of the universal asynchronous receiver/transmitters (UARTs)
implemented on the MCF5235 and includes programming examples.
26.1.1
The MCF5235 contains three independent UARTs. Each UART can be clocked by the internal bus
clock, eliminating the need for an external UART clock. As
module interfaces directly to the CPU and consists of the following:
Freescale Semiconductor
• Serial communication channel
• Programmable clock generation
• Interrupt control logic and DMA request logic
• Internal channel control logic
(To SCM and DMA Controller)
Transmit DMA Request
Receive DMA Request
Introduction
(to Interrupt Controller)
Overview
Interrupt Request
The designation “n” is used throughout this section to refer to registers
or signals associated with one of the three identical UART modules:
UART0, UART1, or UART2.
Figure 26-1. UART Block Diagram
MCF5235 Reference Manual, Rev. 2
Internal Channel
Interrupt Control
DMA Request
Control Logic
Logic
Logic
NOTE
UART
Communications
Programmable
Generation
Channel
Clock
Serial
Figure 26-1
UnCTS
UnRTS
UnRXD
UnTXD
Internal Bus Clock (f
or External clock (DTnIN)
shows, each UART
sys/2
)
26-1