PICAXE Manual Section 1 - TechnoPujades - Free

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www.picaxe.co.ukSection 1 34GETTING STARTEDPICAXE-40X1ResetULPWU / ADC 0 / In a0ADC 1 / In a1ADC 2 / In a2ADC 3 / In a3Serial InSerial OutADC 5ADC 6ADC 7+V0VResonatorResonatortimer clk / Out c0 / In c0pwm 1 / Out c1 / In c1pwm 2 / Out c2 / In c2i2c scl / spi sck / Out c3 / In c3Input 0Input 112345678910111213141516171819204039383736353433323130292827262524232221Output 7Output 6Output 5Output 4Output 3Output 2Output 1Output 0+V0VInput 7 / kb dataInput 6 / kb clkInput 5Input 4In c7 / Out c7 / hserinIn c6 / Out c6 / hseroutIn c5 / Out c5 / spi sdoIn c4 / Out c4 / i2c sda / spi sdiInput 3Input 2In c7 / Out c7 / hserinInput 4Input 5Input 6 / kb clkInput 7 / kb data0VV+Output 0Output 1Output 2Output 3Not ConnectedIn c0 / Out c0 / timer clkResonatorResonator0VV+ADC 7ADC 6ADC 5Serial OutSerial InNot ConnectedNot ConnectedOutput 4Output 5Output 6Output 7ResetULPWU / ADC 0 / In a0ADC 1 / In a1ADC 2 / In a2ADC 3 / In a3In c6 / Out c6 / hseroutIn c5 / Out c5 / spi sdoIn c4 / Out c4 / i2c sda / spi sdiInput 3Input 2Input 1Input 0In c3 / Out c3 / 2c scl / spi sckIn c2 / Out c2 / pwm 2In c1 / Out c1 / pwm 1Not Connected1234567891011444342414039383736PICAXE-40X1(44 Pin TQFP)353433323130292827262524231213141516171819202122revolution(c) Revolution Education Ltd. Email: info@rev-ed.co.uk Web: www.rev-ed.co.ukVersion 6.9 07/2009All rights reserved.34
www.picaxe.co.ukSection 1 35GETTING STARTEDPICAXE-40XResetADC 0 / In a0ADC 1 / In a1ADC 2 / In a2ADC 3 / In a3Serial InSerial OutADC 5ADC 6ADC 7+V0VResonatorResonatorIn c0 / Out c0In c1 / Out c1 / pwm 1In c2 / Out c2 / pwm 2In c3 / Out c3 / i2c sclInput 0 / InfrainInput 112345678910111213141516171819204039383736353433323130292827262524232221Output 7Output 6Output 5Output 4Output 3Output 2Output 1Output 0+V0VInput 7 / keyboard dataInput 6 / keyboard clockInput 5Input 4In c7 / Out c7In c6 / Out c6In c5 / Out c5In c4 / Out c4 / i2c sdaInput 3Input 2The minimum operating circuit for the 40 pin device is the same as the 28 pinminimum circuit (altering the appropriate pin numbers as required).See the USB / Serial Download Circuit section of this manual for more detailsabout the download circuit.Notes:1) The 10k/22k resistors must be included for reliable operation.DO NOT leave the serial in pin floating as THE PROGRAM WILL NOT RUN!2) The reset pin must be tied high with the 4k7 resistor to operate.3) Resonator:40X2 (optional) 4 (16), 8(32), or 10(40) MHz40X2-3V (optional) 4 (16), 8(32), 10 (40) or 16(64) MHz40X1 (optional) 16MHz40X4, 8 or 16MHzThe 40X1 and 40X2 have an internal resonator (4 or 8MHz) and so the externalresonator is optional. On 40X parts it is compulsory.The 40X2 has an internal 4xPLL circuit. This multiplies the external clock speedby 4. Therefore an external 4MHz resonator gives an actual internal operatingclock frequency of 4x4MHz=16MHz.IMPORTANT NOTE - this manual describes use of the standard range (3-5V) parts.The X2 parts are also available in special low power (1.8V to 3.3V) variants. Use of a5V supply on a 3.3V part will permanently damage it!revolution(c) Revolution Education Ltd. Email: info@rev-ed.co.uk Web: www.rev-ed.co.ukVersion 6.9 07/2009All rights reserved.35
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