Q2686

Manufacturer Part NumberQ2686
DescriptionWireless CPU
ManufacturerWavecom
Q2686 datasheet
 
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3.4.1.4
SPI2 Bus ................................................................................. 31
3.4.2
I2C Bus ......................................................................................... 32
3.4.2.1
I²C Waveforms ........................................................................ 32
3.4.2.2
I²C Bus Pin-out ....................................................................... 33
3.5
Keyboard Interface ................................................................................ 34
3.6
Main Serial Link (UART1) ...................................................................... 35
3.7
Auxiliary Serial Link (UART2) ................................................................ 37
3.8
SIM Interface ........................................................................................ 38
3.8.1
General Description....................................................................... 38
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3.9
General Purpose Input/Output .............................................................. 40
3.10
Analog to Digital Converter ................................................................... 42
3.11
Analog Audio Interface ......................................................................... 43
3.11.1
Microphone Inputs........................................................................ 43
3.11.1.1
Common Microphone Input Characteristics ............................ 43
3.11.1.2
Main Microphone Inputs (MIC2) ............................................. 43
3.11.1.3
Auxiliary Microphone Inputs (MIC1)........................................ 44
3.11.1.4
Microphone Electrical Characteristics...................................... 44
3.11.2
Common Speaker Output Characteristics...................................... 45
3.11.2.1
Differential Connection ............................................................ 45
3.11.2.2
Single-ended Connection ........................................................ 45
3.11.3
Speaker Outputs ........................................................................... 45
3.11.3.1
Speaker 2 Outputs .................................................................. 45
3.11.3.2
Speaker 1 Outputs .................................................................. 46
3.11.3.3
Speaker Power Output ............................................................ 46
3.12
Buzzer Output ...................................................................................... 47
3.13
Battery Charging Interface .................................................................... 48
3.13.1
Ni-Cd / Ni-Mh Charging Algorithm ................................................ 48
3.13.2
Li-Ion Charging Algorithm ............................................................. 49
3.13.3
Controlled Pre-charging Hardware ................................................ 50
3.13.4
Temperature Monitoring ............................................................... 50
3.14
ON / ~OFF signal .................................................................................. 51
3.14.1
Operating Sequences .................................................................... 51
3.14.1.1
Power-ON ............................................................................... 51
3.14.1.2
Power-OFF.............................................................................. 54
3.15
BOOT Signal ......................................................................................... 55
3.16
Reset Signal (~RESET) .......................................................................... 56
3.17
External Interrupt.................................................................................. 58
3.18
VCC_2V8 and VCC_1V8 Output ............................................................. 59
3.19
BAT-RTC (Backup Battery).................................................................... 60
3.19.1
Interface Description ..................................................................... 60
3.20
FLASH-LED Signal ................................................................................ 61
3.21
Digital Audio Interface (PCM)................................................................ 63
3.21.1
Description ................................................................................... 63
3.22
USB 2.0 Interface.................................................................................. 66
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged without
prior written agreement.
WM_PRJ_Q2686_PTS_001-007
confidential ©
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Q2686 Wireless CPU
Page: 8 / 87
March 6, 2007