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参数资料
| 型号： | MCF5407FT220 |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 220 MHz, RISC PROCESSOR, PQFP208 |
| 封装： | 28 X 28 MM, 0.50 MM PITCH, PLASTIC, FQFP-208 |
| 文件页数： | 35/35页 |
| 文件大小： | 441K |
| 代理商： | MCF5407FT220 |
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MOTOROLA
MCF5407 Integrated ColdFire Microprocessor Product Brief
9
ColdFire Module Description
1.3.5
UART Modules
The MCF5407 contains two UARTs, which function independently. One UART has been enhanced to
provide synchronous operation and a CODEC interface for soft modem support. Each UART can be clocked
by the system bus clock, eliminating the need for an external crystal. Each UART module interfaces directly
to the CPU, as shown in Figure 2.
Figure 2. UART Module Block Diagram
Each UART module consists of the following major functional areas:
Serial communication channel
16-bit timer for baud-rate generation
Internal channel control logic
Interrupt control logic
In addition, UART1 is enhanced to provide a CODEC interface for soft modem support. UART1 can be
programmed to function like UART0 or in one of three following modem modes:
An 8-bit CODEC interface
A 16-bit CODEC interface
An audio CODEC ‘97 (AC97) digital interface controller
Each UART contains an on-chip baud-rate generator, which provides both standard and nonstandard baud
rates. Data formats can be 5, 6, 7, or 8 bits with even, odd, or no parity, and up to 2 stop bits in 1/16
increments. The UARTs include the following transmit and receive FIFO buffers:
UART0 has a 4-byte FIFO receive buffer and a 2-byte FIFO transmit buffer.
In UART1, the Tx and Rx FIFOs can hold the following:
— 32 1-byte samples when programmed as a UART or as an 8-bit CODEC interface
— 16 2-byte samples when programmed as a 16-bit CODEC interface
— 16 20-bit samples when programmed as a Digital AC ’97 Controller
The UART modules also provide several error-detection and maskable-interrupt capabilities. Modem
support includes request-to-send (RTS) and clear-to-send (CTS) lines.
Serial Communications
Channel
Interrupt Control
Logic
CTS
RTS
RxD
TxD
System bus clock
or
External clock (TIN)
Internal Channel
Control Logic
16-Bit Timer for
Baud-Rate Generation
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相关代理商/技术参数 |
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| MCF54410CMF250 | 制造商:Freescale Semiconductor 功能描述:MCF54410CMF250 - Bulk |
| MCF54415CMJ250 | 功能描述:微处理器 - MPU COLDFIREV4M CORE C90LP RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MCF54415CMJ250 | 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MCU COLDFIRE 250MHZ 256-MA |
| MCF54416CMJ250 | 功能描述:微处理器 - MPU COLDFIREV4M CORE C90LP RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MCF54416CMJ250 | 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU COLDFIRE 250MHZ 256-MA |
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