8
Customize the embedded system based on
Your
Idea
1.7 CPU Introduction
CM-A40I specifications
Pin number
– 196pins
Dimension
– 45 x 58mm
Layer
– 8 Layers, complying with EMS/EMI
Preinstalled OS
– Linux3.10 or Android7.1
Power supply
– DC 5V or 3.7V Battery
Application
– Industrial control, communications and measurement, etc.
CM-A40I Pin Definition
Pin
Signal
Description
Alternate
functions
IO Voltage
1
KEYADC1
6bit ADC channel1
3.3V
2
KEYADC0
6bit ADC channel0
3.3V
3
FEL
Boot mode select:
Low: download from USB,
High: fast boot
3.3V
4
PD26/
LCD0_HSYNC
LCD0 horizontal sync
GPIOD26/
SMC_SLK
3.3V
5
PD27/
LCD0_VSYNC
LCD0 vertical sync
GPIOD27/
SMC_SDA
3.3V
6
USB-DP2
USB2 data +
3.3V
7
USB-DM2
USB2 data -
3.3V
8
USB-DP1
USB1 data +
3.3V
9
USB-DM1
USB1 data -
3.3V
10
USB-DP0
USB0 data +
3.3V
11
USB-DM0
USB0 data -
3.3V
12
PI4/SDC3_CMD
SDC3 command signal
GPIOI4
3.3V
13
HTXCN
HDMI Clock -
3.3V