User guide

M80 EVB User Guide
M80_EVB_User_Guide_V1.2 - 31 -
Table 13: Pins of Serial port
Pin
Signal
I/O
Description
Note
1
VUSB
I
USB power
2
USB_DM
I/O
USB data negative
3
USB_DP
I/O
USB data positive
4
GND
Ground
3.7. SD card
The module provides SD card interface, whose maximum capacity is up to 32GB. M80 EVB
reserves an SD card socket in the board. The pin definition and reference design are shown as
below.
Figure 31: Micro SD card circuit
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