Sierra Wireless GM47 Application Note Download | Manualshive

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Application Note

Differences between GM47/GM48

and GM47r5/GM48r5

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Summary of Contents for GM47

Page 1: ...Application Note Differences between GM47 GM48 and GM47r5 GM48r5 ...

Page 2: ... Mobile Communications reserves the right to make modifications additions and deletions to this manual due to typographical errors inaccurate information or improvements to programs and or equipment at any time and without notice Such changes will nevertheless be incorporated into new editions of this manual All rights reserved Sony Ericsson Mobile Communications 2003 ...

Page 3: ...RIPTION 8 3 1 IO ADC PINS 13 22 8 3 1 1 Backwards compatibility 8 3 2 RS232 FLOW CONTROL PINS 32 36 37 38 39 40 8 3 2 1 Backwards compatibility 8 3 3 LED IO6 PIN 33 9 3 3 1 Backwards compatibility 9 3 4 IN O PINS 37 32 36 38 40 9 3 4 1 Backwards compatibility 9 3 5 UART3 IO PINS 43 44 9 3 5 1 Backwards compatibility 9 4 SOFTWARE DIFFERENCES 10 4 1 AT COMMANDS 10 4 1 1 AT E2IO 10 4 1 2 AT E2RS232 1...

Page 4: ...document sets out the differences both in electrical interface and in software between the existing product GM47 and the new enhanced product the GM47r5 It shows the compatibility between the two products and gives an overview of the improvements implemented in the new product ...

Page 5: ...DC2 ADC3 28 29 SDA SCL 30 LO pulse HI on sound 31 BUZZER O5 32 HI for 10mS then LO LO pulse HI on LED on 33 LED VIO 34 LO pulse 100ns appears 9ms after VIO 35 TX_ON RI O6 36 HI for 350mS then LO for 350mS then HI I P 100K 2V7 37 DTR IN5 DCD O7 38 HI for 350mS then LO for 350mS then HI I P 100K 2V7 39 RTS CTS 40 Hi 397mS then LO LO 41 TD RD 42 HI for 640ms then LO pulse for 13 3ms then HI 0 7V for ...

Page 6: ...30 LO pulse on sound 31 BUZZER O3 DSR 32 HI for 330mS then LO LO HI on LED light 33 LED I O6 VIO 34 LO pulse 1 2µs appears 1ms after VIO 35 TX_ON RI O2 36 HI for 330mS then LO for 260mS then HI I P 100K 2V7 37 DTR IN1 DCD O1 38 HI for 330mS then LO for 260mS then HI I P 100K 2V7 39 RTS I O9 CTS O4 40 HI for 330mS then LO LO 41 TD RD 42 HI for 90ms then low pulse for 1µs then HI 0 7V for 1ms then L...

Page 7: ...signal has been implemented sharing with a digital output One new general purpose I O pin added dual function allowing either digital I O or analogue ADC Two additional ADC inputs sharing common pin with digital I O total ADC capability increased to five lines Dual function pins provide 9 digital I O 4 digital outputs and 1 digital input ...

Page 8: ...ing it is not feasible to operate all these features concurrently although with care dynamic switching from one feature to another and back is possible but may require additional external circuitry When a particular feature is required of an IO the software sets the states of the relevant IO blocks disabling one set and enabling others This is most noticeable with the RS232 hardware flow control w...

Page 9: ...ult operation designation is as LED This is as GM47 3 4 IN O Pins 37 32 36 38 40 When not being used for an alternative function the pins labelled I and O may be used for general purpose inputs or outputs respectively The inputs have an on board 100k pull up resistor and the outputs are driven rail to rail at 2 75V levels 3 4 1 Backwards compatibility Default operation designation is as RS232 inte...

Page 10: ...en used on GM47r5 The GM47r5 will accept an extra parameter 6 allowing pins to switch functionality as required Note Pin 37 GM47 5 and GM47r5 I1 is now not a triggerable input The trigger functionality on this pin is lost in GM47r5 However the GM47r5 AT E2IO command now supports the extra IO IO5 which is triggerable and has the same functionality as IO1 to IO4 4 1 2 AT E2RS232 This is a new comman...

Page 11: ...O3 23 23 I O4 24 24 I O5 N A 13 I O6 N A 33 I O7 N A 43 I O8 N A 44 I O9 N A 39 IN1 N A 37 IN5 37 Now IN1 O1 N A 38 O2 N A 36 O3 N A 32 O4 N A 40 OUT5 32 Now O3 OUT6 36 Now O2 OUT7 38 Now O1 ADC1 26 26 ADC2 27 27 ADC3 28 28 ADC4 N A 13 ADC5 N A 22 DSR N A 32 RI 36 36 DTR 37 37 DCD 38 38 RTS 39 39 CTS 40 40 Key Unchanged New Altered ...

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