Rabbit RCM3365 User Manual

Contents

Rabbit RCM3365 User Manual Manual pdf 89 page image

User’s Manual 83B.1.1 Prototyping Board Features• Power Connection—A power-supply jack and a 3-pin header are provided for con-nection to the power supply. Note that the 3-pin header is symmetrical, with both outerpins connected to ground and the center pin connected to the raw V+ input. The cableof the AC adapter provided with the North American version of the Development Kitends in a plug that connects to the power-supply jack (J1). A header plug leading tobare leads is provided for overseas customers to connect their power supply to the 3-pinheader (J2)—the center pin of J2 is always connected to the positive terminal, andeither edge pin is negative.Users providing their own power supply should ensure that it delivers 8–30 V DC at 1 A.• Regulated Power Supply—The raw DC voltage provided at the POWER IN jack isrouted to a 5 V switching voltage regulator, then to a separate 3.3 V linear regulator.The regulators provide stable power to the RCM3365/RCM3375 module and the Proto-typing Board. The voltage regulators will get warm while in use.• Power LED—The power LED lights whenever power is connected to the PrototypingBoard.• Core LED—The core LED lights whenever an RCM3365/RCM3375 module isplugged in correctly on the Prototyping Board and the RCM3365/RCM3375 module isnot being reset.• Relay LED—The relay LED lights whenever the Prototyping Board relay is energized.• Reset Switch—A momentary-contact, normally open switch is connected directly to theRCM3365/RCM3375’s /RESET_IN pin. Pressing the switch forces a hardware reset ofthe system.• I/O Switches and LEDs—Two momentary-contact, normally open switches are con-nected to the PG0 and PG1 pins of the RCM3365/RCM3375 module and may be readas inputs by sample applications.Four user LEDs (DS3–DS6) are connected to alternate I/O bus pins PA0–PA3 pins ofthe RCM3365/RCM3375 module via U8, and may be driven as output indicators. PE7and PG5 control the registers in U8 as shown in the sample applications.• Prototyping Area—A generous prototyping area has been provided for the installationof through-hole components. +3.3 V, +5 V, and Ground buses run along one edge ofthis area. Several areas for surface-mount devices are also available. Each SMT pad isconnected to a hole designed to accept a 30 AWG solid wire.• LCD/Keypad Module—Rabbit’s LCD/keypad module may be plugged in directly toheaders LCD1JA, LCD1JB, and LCD1JC. The signals on headers LCD1JB andLCD1JC will be available only if the LCD/keypad module is plugged in to headerLCD1JA. Appendix C provides complete information for mounting and using theLCD/keypad module.