UNICORECOMM UM980 - Page 16

UC-00-M32 EN R1.0 Hardware 11
No.
Pin
I/O
Description
37
GND
—
Ground
38
NC
—
No internal connections
39
NC
—
No internal connections
40
NC
—
No internal connections
41
GND
—
Ground
42
TXD1
O
COM1 transmitting data, LVTTL level
43
RXD1
I
COM1 receiving data, LVTTL level
44
SDA
I/O
I
2
C data
45
SCL
I/O
I
2
C clock
46
NC
—
No internal connections
47
NC
—
No internal connections
48
GND
—
Ground
49
RESET_N
I
System reset; active Low
50
NC
—
No internal connections
51
EVENT
I
Event mark
52
NC
—
No internal connections
53
PPS
O
Pulse per second
54
NC
—
No internal connections