RabbitCore RCM3100 User's Manual

1. Introduction

The RCM3100 RabbitCore module is designed to be the heart of embedded control systems.

Throughout this manual, the term RCM3100 refers to the complete series of RCM3100 RabbitCore modules unless other production models are referred to specifically.

The RCM3100 has a Rabbit 3000 microprocessor operating at 29.4 MHz, static RAM, flash memory, two clocks (main oscillator and timekeeping), and the circuitry necessary for reset and management of battery backup of the Rabbit 3000's internal real-time clock and the static RAM. Two 34-pin headers bring out the Rabbit 3000 I/O bus lines, parallel ports, and serial ports.

The RCM3100 receives its +3.3 V power from the customer-supplied motherboard on which it is mounted. The RabbitCore RCM3100 can interface with all kinds of CMOS-compatible digital devices through the motherboard.

1.1 RCM3100 Features

• Small size: 1.65" × 1.85" × 0.55"
  (42 mm × 47 mm × 14 mm)

• Microprocessor: Rabbit 3000 running at 29.4 MHz

• 54 parallel 5 V tolerant I/O lines: 46 configurable for I/O, 4 fixed inputs, 4 fixed outputs

• Two additional digital inputs, two additional digital outputs

• External reset input

• Alternate I/O bus can be configured for 8 data lines and 6 address lines (shared with parallel I/O lines), I/O read/write

• Ten 8-bit timers (six cascadable) and one 10-bit timer with two match registers

• 256K–512K flash memory, 128K–512K SRAM

• Real-time clock

• Watchdog supervisor

• Provision for customer-supplied backup battery via connections on header J2

• 10-bit free-running PWM counter and four pulse-width registers

• Two-channel Input Capture can be used to time input signals from various port pins

• Two-channel Quadrature Decoder accepts inputs from external incremental encoder devices

• Six CMOS-compatible serial ports: maximum asynchronous baud rate of 3.68 Mbps, maximum synchronous baud rate of 7.35 Mbps. Four ports are configurable as a clocked serial port (SPI), and two ports are configurable as SDLC/HDLC serial ports.

• Supports 1.15 Mbps IrDA transceiver

There are two production models in the RCM3100 series. If the standard models do not serve your needs, other variations can be specified and ordered in production quantities. Contact your Rabbit Semiconductor sales representative for details.

Table 1 below highlights the differences between the two models in the RCM3100 family.

Table 1. RCM3100 Versions

Feature	RCM3100	RCM3110
Microprocessor	Rabbit 3000 running at 29.4 MHz
Flash Memory	2 × 256K	256K
Static RAM	512K	128K
Serial Ports	6 shared high-speed, CMOS-compatible ports: 6 are configurable as asynchronous serial ports; 4 are configurable as clocked serial ports (SPI); 2 are configurable as SDLC/HDLC serial ports; 1 asynchronous clocked serial port is dedicated for programming

In addition, there is an RCM3000 series of RabbitCore modules that includes Ethernet connectivity.

The RabbitCore modules can be programed locally, remotely, or via a network using appropriate interface hardware.

Appendix A, "RabbitCore RCM3100 Specifications," provides detailed specifications for the RCM3100.

1.2 Advantages of the RCM3100

• Fast time to market using a fully engineered, "ready to run" microprocessor core.

• Competitive pricing when compared with the alternative of purchasing and assembling individual components.

• Easy C-language program development and debugging

• Utility programs for rapid production loading of programs.

• Generous memory size allows large programs with tens of thousands of lines of code, and substantial data storage.

1.3 Development and Evaluation Tools

A complete Development Kit, including a Prototyping Board and Dynamic C development software, is available for the RCM3100. The Development Kit puts together the essentials you need to design an embedded microprocessor-based system rapidly and efficiently.

1.4 How to Use This Manual

This user's manual is intended to give users detailed information on the RCM3100 module. It does not contain detailed information on the Dyna-mic C development environment.

1.4.1 Additional Product Information

Information about the RCM3100 and its associated Development Kit and Prototyping Board can be found in the RabbitCore RCM3100 User's Manual, which is provided on the accompanying CD-ROM in both HTML and Adobe PDF format.

In addition to the product-specific information contained in the RabbitCore RCM3100 User's Manual (this manual), several higher level reference manuals are provided in HTML and PDF form on the accompanying CD-ROM. Advanced users will find these references valuable in developing systems based on the RCM3100 modules:

• Dynamic C User's Manual

• Dynamic C Function Reference Manual

• Rabbit 3000 Microprocessor User's Manual

1.4.2 Online Documentation

The online documentation is installed along with Dynamic C, and an icon for the documentation menu is placed on the workstation's desktop. Double-click this icon to reach the menu. If the icon is missing, use your browser to find and load default.htm in the docs folder, found in the Dynamic C installation folder.

The latest versions of all documents are always available for free, unregistered download from our Web sites as well.