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37
touch screen function
30 YP touch screen signal
31 XN touch screen signal
32 YN touch screen signal
33 nUART1_DCD
34 UART1_RXD
35 UART1_TXD
36 nUART1_DTR
37 GND
38 nUART1_DSR
39 nUART1_RTS
40 nUART1_CTS
41 nUART1_RI
42 VCC_UART1 +5V
43 GND
44 VCC_UART1
45 N.C. No function
46 N.C. No function
47 USB_VCC5
48 GND
49 SA_BUSB_DPR
50 SA_BUSB_DNR
51 USB1_V USB 1st host power +5V
52 GND
53 USB1_P USB 1st host signal
54 USB1_N USB 1st host signal
55 USB2_V USB 2ed host power +5V
56 GND
57 USB2_P USB 2ed host signal
58 USB2_N USB 2ed host signal
CN 12 : HotKey function header
Pin Number Pin function Ps.
1 HK 1 1
st
pin of hotkey function
2 HK 5 5
th
pin of hotkey function
3 HK 2 2
nd
pin of hotkey function
4 HK 6 6
th
pin of hotkey function
5 HK 3 3
rd
pin of hotkey function
6 HK 7 7
th
pin of hotkey function
7 HK 4 4
th
pin of hotkey function
8 HK 8 8
th
pin of hotkey function
9 GND
10 SYS_VCC3P3
note : when HKx connects to SYS_VCC3P3, then hotkey function works. HKx
signals are triggered by rising edge.