No.88136 作者:luvkyhj 邮件:luvkyhj@hotmail.com ID:43626 登陆:7次 文章数:5篇 最后登陆IP:58.61.194.176 最后登陆:2008/6/10 18:23:44 注册:2005/11/14 9:23:19 财富:138 发帖时间:2006/1/16 12:03:54 发贴者IP:219.130.133.120 标题:luvkyhj:大家评评这款微控器在哪方面应用最好 摘要:No.88136大家评评这款微控器在哪方面应用最好 0 to 75MHz 1.8V processor ♦ 3.3/5V tolerant I/O ♦ Powerful arithmetic operations ♦ Barrel Shifter ♦ Harvard Architecture ♦ 64Kx16 Data Memory Space ♦ 16Mx16 Program Memory Space ♦ Built in Emulator (eICE) ♦ Low power operation ♦ 512/256/128Kbytes FLASH EPROM ♦ 24/16/8Kbytes SRAM ♦ MMU ♦ Power-saving code cache ♦ Code security feature ♦ External Host Interface ♦ External Memory Interface ♦ Fast Vectored Interrupts ♦ 2 off DUARTs ♦ Dual USART ♦ - Smart Card Interface ♦ - SPI ♦ - I2C ♦ - Infra-Red Link support ♦ I2S ♦ SPI ♦ Dual 7 channel 12-bit ADCs ♦ Dual 12-bit DACs ♦ Temperature Sensor ♦ Supply Voltage Sensor ♦ Power-On Reset ♦ USB 2.0 480Mbit On The Go ♦ 10/100 Ethernet MAC ♦ 4x32 LCD Controller ♦ 5 Multi Purpose Timers ♦ Watchdog Timer ♦ Long Interval Timer ♦ Clock Timer ♦ PWM timers ♦ PWM motor control ♦ Parallel Interface ♦ 136 General Purpose I/O pins ♦ Low power relaxation oscillator ♦ Interfaces to 8/16/32-bit CPU Core • 16-bit 75MHz core. • Harvard architecture. • Supports a full array of 16-bit arithmetic operations, including both signed and unsigned MULtiply and DIVide instructions. • 32MByte linear program memory. • 128KByte linear data memory. • Vectored interrupts. • Full ICE debug support. MMU • Performs logical to physical address translations. • Translates between RAM, Program Memory, and external memory devices for both code and data accesses concurrently. • Lookup tables in RAM or Flash can be mapped between each memory area. • Up to 4 concurrent translations to external devices from code addresses. • Up to 4 concurrent translations to external devices from data addresses. • Programmable wait state generation. • Concurrent accesses to same device are prioritised. • Translations are prioritised to allow overlapped translations. Flash Memory • 512/256/128Kbytes, 16 bits wide. • Organised into multiple sectors. • Can be mapped into both code and data spaces. • Individual Flash sectors can be read and/or write protected. • Simple programming via JTAG interface, with eICE support for programming for user access. Code Cache • Individual cache entries can be locked. • Can cache both User and Interrupt Mode. Static RAM • 24/16/8Kbytes, 16 bits wide. • Can be mapped into both code and data spaces. External Memory Interface • 8 or 16-bit data bus. • 16 or 24-bit address bus. • Multiplexed address/data for 16-bit data bus. • External devices can be mapped into both code and data space. • Supports SRAM (bus) and SDRAM interface modes. • Supports up to 128M Single Data Rate 16-bit wide SDRAMs. • Four Row/Column SDRAM address multiplexing schemes. • Supports SDRAM auto and self refresh. • Configurable timing. • Supports low power SDRAM suspend/standby mode. • Single cycle data space access, code space burst access in conjunction with Code Cache. • Hardware support for software initialisation and refresh of SDRAM. External Host Interface (EHI) • Provides an interface to an external host processor or FIFO. • Supports both DMA and memory mapped peripheral modes. • Interrupt generated upon transfer. DMA Mode: • Supports master and slave mode timings. • 16/32-bit data bus. • Request & Acknowledge control lines. • Configurable master mode timing. • DMA connection into internal SRAM (11-bit block address, max 256 byte block size). • Internal DMA controller supports circular and linked list buffer models. Memory Mapped Mode: • Selectable block size 256 x 16-bit data 8 x 32-bit data. • Three control lines: chip select, read/write direction and wait. • Configurable control line senses. DUART (2 off) • Each DUART has two independent RS232 compatible asynchronous double-buffered serial ports. • Supporting 5, 6, 7, or 8-bits of data • 1, 1.5, or 2 stop bits. • Even, odd or no parity. • Automatic end-of-frame guard time insertion of 0- to 64-bit periods. • Receive time-out detection 0 to 64-bit periods. • Software Line Break generation. • Programmable Baud rate generator. • Interrupts generated on full and empty. • Receiver error detection for false start bits, parity errors and frame errors. • Configurable data polarity. • Over-sampling of received data for noise immunity. DUSART • Two synchronous/asynchronous double-buffered serial ports. • Programmable baud rate generator. • End of frame guard time insertion of 0 to 64-bit periods. • Receive time-out detection 0 to 64-bit periods. • Receiver error detection for false Start bits, Parity errors, Frame errors and Buffer overflow. • Configurable data and clock polarity. • Configurable data packing, MSB or LSB first. • Over sampling of receive data for noise immunity. Asynchronous Interface: • Asynchronous frames supporting 5, 6, 7, or 8-bits of data. • 1, 1.5, or 2 stop bits. • Even, odd or no parity. • Full modem support using GPIO. • Software Line Break generation. Synchronous Interface: • Local or external transmit and receive clock. • Full or half duplex. • Frame sizes from 1 to 16-bits with larger frames possible. • Support for NRZ, RZ. • PM, PWM and ASK modulation if used in conjunction with PWM timer. I2C: • Two wire I2C compatible port. • Address matching. • ACK bit and wait state insertion. • Multi-master arbitration. • Supports 10-bit addressing and fast mode. SPI: • Multi-slave SPI system. • Four slave select lines. • Both master and slave roles. • Programmable serial clock polarity and phase. • Support for high speed directly clocked operation and sampled filtered operation. Smart Card Interface: • ISO 7816 compatible smart card interface. • Multiprocessor support. • Byte level support for T=0 and T=1 transmission protocols. • Detection and generation of the transmission error signal for T=0 protocol. • Automatic retransmission of corrupted bytes for T=0 protocol. • Independent controls for power and ground switching. • Hardware state machine for power up, reset and shutdown sequences. Infra-Red Link: • Programmable baud rates. • S ......
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