BM1880AA EDB
Hardware User Manual
Secret
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Page 13
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Total 13
VBUS
VBUS
BM1880 USB controller
USB3.0/2.0
HOST/DEVICE
TUX154
2:1
OTG
USB2.0 D+/-
User port3 (STD A)
OTG support
USB3.0
USB3.0 HUB
TUSB8041
USB3.0
User port1(STD A)
USB2.0/3.0
SW1
USB2.0
D+/-
PORT3 USB2.0 D+/-(default)
User port2 (STD A)
USB2.0/3.0
EN
VBUS
VBUS
TUX154
2:1
USB2.0
PORT_SEL
The EDB board utilizes a single SoC USB interface, which support USB2.0 and USB3.0 protocol.
3.8
System and user LEDs
There are one status LED and four User LEDs on the EDB. The user LEDs can be programmed by
the SoC directly.
D56- 3.3V power LED: 3.3V power good indicator,
This is a green type surface mount 0402 LED
D58-D61 USER LEDs
The four user LEDs are surface mount green type 0402 LED
D62 WIFI LED
The WiFi activity LED is a yellow type surface mount 0402 LED
D63 BT LED
The BT activity LED is a blue type surface mount 0402 LED
3.9
JTAG header
The EDB includes soldering a 14-pin header of J6 that brings out the SoC signals for A53 JTAG
debugging. Another optional 14-pin header of J7 is for RSIC-V JTAG debugging.
