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OLIMEX MOD-RTC, User Manual

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OLIMEX© 2012

MOD-RTC User's Manual

CHAPTER 8...............................................................................................................16
REVISION HISTORY..............................................................................................16

8. Introduction to the chapter.....................................................................................................16
8.1 Document revision.................................................................................................................16
8.2 Web page of your device.......................................................................................................16

Page 4 of 16

Summary of Contents for MOD-RTC

Page 1: ...MOD RTC development board USER S MANUAL Initial release May 2012 Designed by OLIMEX Ltd 2011 All boards produced by Olimex LTD are ROHS compliant ...

Page 2: ...erial from except with the prior written permission of the copyright holder The product described in this document is subject to continuous development and improvements All particulars of the product and its use contained in this document are given by OLIMEX in good faith However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for p...

Page 3: ...RTC BOARD DESCRIPTION 8 3 Introduction to the chapter 8 3 1 Layout bottom view 8 CHAPTER 4 9 THE PCF8563 CMOS REAL TIME CLOCK 9 4 Introduction to the chapter 9 4 1 The PCF8563 9 CHAPTER 5 10 CONTROL CIRCUITY 10 5 Introduction to the chapter 10 5 1 Reset 10 5 2 Clock 10 CHAPTER 6 11 HARDWARE 11 6 Introduction to the chapter 11 6 1 BAT connector 11 6 2 UEXT 11 6 3 Jumper description 12 CHAPTER 7 13 ...

Page 4: ...OLIMEX 2012 MOD RTC User s Manual CHAPTER 8 16 REVISION HISTORY 16 8 Introduction to the chapter 16 8 1 Document revision 16 8 2 Web page of your device 16 Page 4 of 16 ...

Page 5: ...implementation of NXP s real time clock calendar chip PCF8563 The main purpose of MOD RTC is adding real time clock to another Olimex board via the UEXT connector without the need of a hardware modification 1 1 Features PCF8536 Real time clock Lithium 3V battery connector UEXT connector FR 4 1 5 mm soldermask component print Dimensions 40x19mm 1 57 x 0 75 Page 5 of 16 ...

Page 6: ...handling the board Avoid touching the component pins or any other metallic element 2 2 Requirements In order to set up the MOD RTC the following items are required MOD RTC module itself an OLIMEX board to use as a host Note that it is possible to use another board without UEXT but that might cost you the ease of use e g you will have to manually connect wires in the proper order Additionally if yo...

Page 7: ...OLIMEX 2012 MOD RTC User s Manual but it is not guaranteed All you have to do is write setup command and change RTC on Boot Check the pictures below Page 7 of 16 ...

Page 8: ...SCRIPTION 3 Introduction to the chapter Here you get acquainted with the main parts of the board Note the names used on the board differ from the names used to describe them For the actual names check the MOD RTC board itself 3 1 Layout bottom view Page 8 of 16 ...

Page 9: ...ackup current typical 0 25 A at VDD 3 0 V and Tamb 25 C 400 kHz two wire I2C bus interface at VDD 1 8 V to 5 5 V Programmable clock output for peripheral devices 32 768 kHz 1 024 kHz 32 Hz and 1 Hz Alarm and timer functions Integrated oscillator capacitor Internal Power On Reset POR I2C bus slave address read A3h and write A2h Open drain interrupt pin For comprehensive information on the PCF8563 v...

Page 10: ...ROL CIRCUITY 5 Introduction to the chapter Here you can find information about reset circuit and quartz crystal locations 5 1 Reset The module lacks hardware reset 5 2 Clock Real time clock RTC Q2 is found at pins 1 and 2 of the PCF8563 Page 10 of 16 ...

Page 11: ...Notes regarding the interfaces are given 6 1 BAT connector 3V battery can be inserted to power the board externally Insert the battery with its positive side top 6 2 UEXT MOD RTC board has UEXT connector and can interface Olimex s UEXT modules Since MOD RTC is configured as a slave device it is advisable to be connected to a host device For more information on UEXT please visit http www olimex com...

Page 12: ...OLIMEX 2012 MOD RTC User s Manual 5 SCL 6 SDA 7 NOT CONNECTED 8 NOT CONNECTED 9 NOT CONNECTED 10 NOT CONNECTED 6 3 Jumper description The module doesn t have any jumpers Page 12 of 16 ...

Page 13: ...scribing logically and physically MOD RTC 7 1 Eagle schematic MOD RTC schematic is visible for reference here You can also find them on the web page for MOD RTC at our site http www olimex com dev MOD RTC html They are located in HARDWARE section The EAGLE schematic is situated on the next page for quicker reference Page 13 of 16 ...

Page 14: ...768Hz 6pF NA 2 2k NA 2 2k NA 2 2k NA 2 2k 330R 330R NA 330R NA 330R 0R NA 2V7 2V7 2V7 2V7 2V7 2V7 IDC10S PCB INT INT CLKOUT CLKOUT SCL SCL SDA SDA BAT C1 C16 C17 D1 D2 Q2 R1 R2 R4 R5 R6 R7 R8 R9 R10 INT 3 CLKOUT 7 OSCI 1 OSCO 2 SCL 6 SDA 5 VDD 8 VSS 4 U1 PCF8563T 5 1 2 3 4 5 6 7 8 9 10 UEXT GN D 0R UEXT RTC_MODULE ...

Page 15: ...OLIMEX 2012 MOD RTC User s Manual 7 2 Physical dimensions Note that all dimensions are in inches Page 15 of 16 ...

Page 16: ...he latest available updates and examples 8 1 Document revision Revision Changes Modified Pages A Initial Creation All 8 2 Web page of your device The web page you can visit for more info on your device is http www olimex com dev MOD RTC html There you can find more info and some examples ORDER CODES MOD RTC completely assembled and tested How to order You can order to us directly or by any of our ...

Page 17: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Olimex Ltd MOD RTC ...

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