User Manual For Cyclone LC Programmers
25
SWD Mode is selected from the “Communication Mode” drop-down box in the Cyclone Image
Creation Utility:
Figure 3-10: Communications Mode Selection
3.17.2.2.1 High-Performance Communications (FX ONLY)
If high-performance options are available for the selected device they will appear in the “Shift
Frequency in M Hz” drop-down.
Cyclone
FX
programmers are capable of high-performance
communications when using certain ARM Cortex targets in SWD mode.
Note: Cyclone LC
programmers cannot currently take advantage of high-performance options, although
the frequencies appear in the display.
Figure 3-11: High-Performance Options (FX ONLY)
3.17.3
PORT C: 20-Pin Debug Connector (Kinetis, S32 (ARM), other PEmicro-Supported ARM
devices)
3.17.3.1 JTAG Mode Pin Assignments
The Cyclone provides a 20-pin 0.100-inch pitch double row connector for ARM targets. The
location of the this header is indicated as
PORT C
under Part# CYCLONE-LC-ARM in
.
The 20-pin standard connector pin definitions for JTAG mode 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
Note:
*The pin is reserved for internal use within the PEmicro interface.
3.17.3.2 SWD Mode Pin Assignments
Cyclone LC
programmers also support 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