参数资料
| 型号： | 101-0405 |
| 厂商： | Rabbit Semiconductor |
| 文件页数： | 26/80页 |
| 文件大小： | 0K |
| 描述： | MODULE RABBITCORE RCM2010 |
| 标准包装： | 1 |
| 系列： | RabbitCore® |
| 模块/板类型： | MPU 核心模块 |
| 适用于相关产品： | RCM2010 |
| 其它名称： | 316-1009 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页当前第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页
28
RabbitCore RCM2000
4.2 Memory I/O Interface
Thirteen of the Rabbit 2000 address lines (A0–A12) and all the data lines (D0–D7) are
available as outputs on the RCM2000. I/0 write (/IOWR), I/0 read (/IORD), buffer enable
(/BUFEN), and Watchdog Output (/WDO) are also available for interfacing to external
devices.
The STATUS output has three different programmable functions:
1. It can be driven low on the first op code fetch cycle.
2. It can be driven low during an interrupt acknowledge cycle.
3. It can also serve as a general-purpose output.
4.2.1 Additional I/0
Although, the output clock is available on the PCLK pin, the output clock is disabled in
software starting with Dynamic C v 7.02 and later. This reduces radiated emissions. The
primary function of PCLK is as a peripheral clock or a peripheral clock ÷ 2, but PCLK can
instead be used as a digital output. See Section 5.2.1, “PCLK Output,” for more informa-
tion.
Two status mode pins, SMODE0 and SMODE1, are available as inputs. The logic state of
these two pins determines the startup procedure after a reset. /RES_IN is an external input
used to reset the Rabbit 2000 microprocessor and RCM2000 memory. /RES_OUT is an
output from the reset circuitry that can be used to reset other peripheral devices.
4.3 Serial Communication
The RCM2000 does not have an RS-232 or an RS-485 transceiver directly on the board.
However, the Prototyping Board does support a industry standard RS-232 transceiver
chip. See Appendix B, “Prototyping Board,” for more information.
4.3.1 Serial Ports
There are four serial ports designated as Serial Ports A, B, C, and D. All four serial ports
can operate in an asynchronous mode up to the baud rate of the system clock divided by
32. An asynchronous port can handle 7 or 8 data bits. A 9th bit address scheme, where an
additional bit is sent to mark the first byte of a message, is also supported. Serial Ports A
and B can be operated alternately in the clocked serial mode. In this mode, a clock line
synchronously clocks the data in or out. Either of the two communicating devices can sup-
ply the clock. When the Rabbit provides the clock, the baud rate can be up to 1/4 of the
system clock frequency, or more than 6.45 Mbps for a 25.8 MHz clock speed.
相关PDF资料 |
PDF描述 |
|---|---|
| 101-0404 | MODULE RABBITCORE RCM2000 |
| 006200505130000+ | CONN FFC/FPC 5POS 1MM R/A SMD |
| 006208505110000 | CONN FFC/FPC 5POS 1MM ZIF SMD |
| 006208505110000+ | CONN FFC/FPC 5POS 1MM ZIF SMD |
| 395-030-541-204 | CARD EDGE 30POS DL .100X.200 BLK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 101-0406 | 功能描述:开发板和工具包 - 其他处理器 Cloning Board RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压: |
| 1010-406 | 制造商:MISCELLANEOUS 功能描述: |
| 101-040600-14 | 制造商:Distributed By MCM 功能描述:RJ11 PLUGS STRANDED FLAT WIREPK10 |
| 101-040600-24 | 制造商:Distributed By MCM 功能描述:RJ11 PLUGS SOLID FLAT WIRE PK10 |
| 101-040610-14 | 制造商:Distributed By MCM 功能描述:RJ11 PLUGS STRANDEDROUND WIRE PK10 |
发布紧急采购，3分钟左右您将得到回复。