Atmel C51 - Manuals - manualsarea.com

Page 3 - Table of Contents

C51 Microcontrollers Demo Board User Guide i 4119C–8051–3/03 Table of Contents Section 1Introduction ........................................................................................... 1-2 1.1 C51/C251 Support .....................................................................................

Page 5 - Section 1; available on the

Introduction C51 Microcontrollers Demo Board User Guide 1-2 4119C–8051–3/03 Section 1 Introduction The C51/C251 Demo Board allows easy evaluation of most of Atmel C51/C251 devices.The C51/C251 Demo Board can be powered using a simple 9V battery or using a 9Vrechargeable battery. The C51/C251 Demo Bo...

Page 6 - Support

Introduction 1-3 C51 Microcontrollers Demo Board User Guide 4119C–8051–3/03 1.3 Support Questions can be sent to: [email protected] 1.4 Demo Board Features n An LCD Display (2 lines of 16 characters) n An Eight LED Bar Graph n 128 KB Flash Memory n Three Different Sockets: PLCC44, PLCC68 & DIL24 n I...

Page 7 - Section 2; Block Diagram; Synchro connectors

Hardware Description C51 Microcontrollers Demo Board User Guide 2-4 4119C–8051–3/03 Section 2 Hardware Description 2.1 Block Diagram Figure 2-1. Block Diagram 2.2 Specifications 2.3 Supported Microcontrollers Most Atmel C51 and C251 microcontrollers are supported. The Demo Board does not support low...

Page 9 - Board Layout; ON

Hardware Description C51 Microcontrollers Demo Board User Guide 2-6 4119C–8051–3/03 Figure 2-4. C51/C251 Demo Board Powered by J2. 2.5 Board Layout n On-Off – Switches ON the power supply. n Reset – Resets the microcontrollers. n INT1# – Issues an interruption on microcontollers on INT1# pin. n J8 C...

Page 10 - Table 1. J11 Switches; Page Mode

Hardware Description 2-7 C51 Microcontrollers Demo Board User Guide 4119C–8051–3/03 Figure 2-5. C51/C251 Demo Board 2.6 J11 Switches Table 1. J11 Switches (Set=1, Clear=0) J11 J9 J16 RS232 Cable to Terminal J8 J8 LCD CTRST + RESET INT1 OFF ON J17 R21 Page Mode Non Page Mode Synchro IN Synchro OUT RS...

Page 11 - Table 2. J9 Switches

Hardware Description C51 Microcontrollers Demo Board User Guide 2-8 4119C–8051–3/03 Table 2. J9 Switches Table 3. J16 Switches Figure 2-6. Switch Configuration Socket and Quartz Crystal The C51/C251 Demo Board provides three different sockets for microcontrollers, aPLCC44, a PLCC68 and a DIL24. Each...

Page 13 - Section 3; Flash Products; Running ISP

Operation Mode C51 Microcontrollers Demo Board User Guide 3-10 4119C–8051–3/03 Section 3 Operation Mode 3.1 Flash Products 3.1.1 Switch Configuration To program the on-chip Flash memory, hardware configuration of the chip should be thefollowing: PSEN = 0, EA = 1 and ALE = 1 or not connected. On C51/...

Page 14 - ISP Operation

Operation Mode 3-11 C51 Microcontrollers Demo Board User Guide 4119C–8051–3/03 3.2 ISP External Flash Memory Mode External Flash memory might be programmed using Windows hyper terminal or any ter-minal able to send HEX files in text mode. 3.2.1 Hardware Configuration The C51/C251 Demo Board must be ...

Page 17 - Demo Mode

Operation Mode C51 Microcontrollers Demo Board User Guide 3-14 4119C–8051–3/03 After the download of the HEX file, the program asks if you want to download anotherHEX file in the second zone of the external Flash memory. In this case you’ll have to switch MAP SELECT (to access second zone) and senda...

Page 19 - Section 4

Bill of Material C51 Microcontrollers Demo Board User Guide 4-16 4119C–8051–3/03 Section 4 Bill of Material Reference Type Qty Comment C1-C28 POL_CAPACITOR 4,7uF 2 CMS_TAJ_Package_B C2:C10-C19:C23 CAPACITOR 100nF 14 Package_0805 C11 POL_CAPACITOR 3,3uF 1 TAJ_CMS_Package_B C12 POL_CAPACITOR 10uF 1 TA...

Page 21 - Section 5

C51 Demo Board User Guide 5-18 Rev. 4119C–8051–3/03 Section 5 Schematics

Page 27 - A tm el He ad q ua rte rs

Printed on recycled paper. Atmel ® is a registered trademark of Atmel. Other te rms and product na mes may be th e tradema rks of others. © A t m e l C o r p o r a t i o n 2 0 0 3 .Atmel Co rporation makes no warranty for the use of its products, other than those expressly contained in the Company’s...