Uart Serial Interface（J9、J11; Pin Definitions - Geniatech DB-G2L-V2 Hardware Manual

6.12 UART Serial Interface（J9、J11）
Two UART serial ports are designed for debugging the system A55 core and M33 core.

6.12.1 Pin Definitions

Label Pin Functional Description
1 NC
2 UART_A send data
J9
3 Ground signal
4 UART_A receive data
1 NC
2 UART_CON send data
J11
3 Ground signal
4 UART_CON receive data
The DB-G2L V2 can only be used for program burning and system debugging through the
SCIF0(UART_CON) serial port, so the interface must be pinned out on the backplane, and the interface
circuit is shown in the figure.
Room 02-04, 10/F, Block A, Building 8, Shenzhen International Innovation Valley, Dashi Road, Nanshan District, Shenzhen, Guangdong, China
Emai: support@geniatech.com
UART serial port schematic
Tel: (+ 86) 755 86028588
Signal description Remark
NC M33 core debugging serial port
UART_A_TX
GND
UART_A_RX
NC A55 core debugging serial port
UART_CON_TX
GND
UART_CON_RX
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