14
Cyclone for ARM devices User Manual
Cyclone for ARM
®
devices
are as follows:
20-Pin Standard Connector JTAG Mode Pin Assignments
PIN 1 -
TVCC
NC -
PIN 2
PIN 3 -
TRST or NC
GND -
PIN 4
PIN 5 -
TDI
GND -
PIN 6
PIN 7 -
TMS
GND -
PIN 8
PIN 9 -
TCK
GND -
PIN 10
PIN 11 -
NC
GND -
PIN 12
PIN 13 -
TDO
GND -
PIN 14
PIN 15 -
RESET
GND -
PIN 16
PIN 17 -
NC
GND -
PIN 18
PIN 19 -
NC
GND -
PIN 20
The Cyclone for ARM devices also supports SWD Mode. This replaces the
JTAG connection with a clock and single bi-directional data pin.
20-Pin Standard Connector SWD Mode Pin Assignments
PIN 1 -
TVCC
NC -
PIN 2
PIN 3 -
TRST or NC
GND -
PIN 4
PIN 5 -
NC
GND -
PIN 6
PIN 7 -
TMS/SWDIO
GND -
PIN 8
PIN 9 -
TCK/SWCLK
GND -
PIN 10
PIN 11 -
NC
GND -
PIN 12
PIN 13 -
NC
GND -
PIN 14
PIN 15 -
RESET
GND -
PIN 16
PIN 17 -
NC
GND -
PIN 18
PIN 19 -
NC
GND -
PIN 20
SWD Mode is selected from the “Communication Mode” drop-down box in the
Cyclone Image Creation Utility: