User Manual

MeiG_SLM550_Hardware Design Manual
MeiG Smart Technology Co., Ltd 13/89
Input Device
Key (Power on/off, Reset , Home, Volume+, Volume-)
Capacitive TP
Reset Support HW reset
Application interface
Interface name Main function description
VBAT 4pin，Power input，3.4V～4.2V，Nominal value3.8V
SDIO *1 TF Card，Support 256GB max
USB
Support OTG，Support Type-C (optional)
USB_BOOT（Force USB boot for emergency
downloads）
QUP ports 10ports (x4 in LPI)
UART*3 Max up to 4 Mbps
I2C*5 Support
SPI(master only) Support
ADC*1 Support
PWM*1 Support
Charge Max up to 2A
Vibrator Support
GPIO 40 GPIOs，Excluded BLSP multiplexing GPIO.
VCOIN Real time clock backup battery
RF Interface
Multimode LTE main antenna
Multimode LTE diversity antenna
The GPS antenna
2.4G +5G WiFi/BT antenna
Audio
One main MIC
One noise reduction MIC
One Handsfree speaker.
One earpiece
One stereo headphone.
2.2 Block diagram
The following figure lists the main functional parts of the module: