Vecow MTC-4021 User Manual page 31

The pin assignments of CN18 are listed in the following table:
Pin No.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
©Vecow MTC-4021 User Manual
Signal Name
WAKE#
Reserved
Reserved
CLKREQ#
GND
REFCLK-
REFCLK+
GND
Mechanical Key
Reserved
Reserved
GND
PERn0
PERp0
GND
GND
PETn0
PETp0
GND
GND
+3.3Vaux
+3.3Vaux
GND
Reserved
Reserved
Reserved
Reserved
Pin No. Signal Name
2 +3.3Vaux
4
6
8 UIM_PWR
10 UIM_DATA
12 UIM_CLK
14 UIM_RESET
16 UIM_VPP
18
20 reserved
22 PERST#
24 +3.3Vaux
26
28
30 SMB_CLK
32 SMB_DATA
34
36 USB_D-
38 USB_D+
40
42 Reserved
44 Reserved
46 Reserved
48
50
52 +3.3Vaux
GETTING TO KNOW YOUR MTC-4021
GND
+1.5V
GND
GND
+1.5V
GND
GND
1.5V
GND
24