FriendlyARM Tiny210 - LED Indicator; User Button

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JTAG Interface
2
4
6
8
10
3.3V
nRESET
TDO
GND
GND
1
3
5
7
9
3.3V
nTRST
TDI
TMS
TCK
2.3.8 LED Indicator
LED is a commonly used status indication device. The Mini210S has four
programmable LEDs which are directly connected to GPIO and are on at a low level
voltage.
LED1
LED2
LED3
LED4
GPIO Pins
GPJ_0
GPJ_1
GPJ_2
GPJ_3
2.3.9 User Button
The Mini210S has four user buttons all of which are extended from CPU’s interrupts
and are triggered at a low level voltage.