BPI Open debugger burn board Abbreviations

CSn	Chip Select (active low)
DC	Debug Clock
DD	Debug Data
RST	Debug Reset
DUT	Device Under Test
GND	Ground
LED	Light Emitting Diode
MISO	Master In Slave Out
MOSI	Master Out Slave In
RF	Radio Frequency
SCLK	Serial Clock
SoC	System-on-Chip
SPI	Serial Peripheral Interface
USB	Universal Serial Bus
Target	Positive voltage on target
CLK	SWD Clock
DIO	SWD DATA Input/Output
TMS	JTAG Test Mode Select
TCK	JTAG Test Clock Input
TDO	JTAG Test Data Output
TDI	JTAG Test Data Input
SRST	JTAGTest Reset Input, Active Low
RXD	USB Serial Input
TXD	USB Serial Output