Altera Nios Cyclone II Edition Reference Manual page 52

Board Components
2–40
Nios Development Board Cyclone II Edition
Figure 2–18. JTAG Connector (J24) to Cyclone II Device
JTAG Connector
(J24)
Figure 2–19. USB Blaster Connected to J24 JTAG Connector
The FPGA's JTAG pins can also be accessed via the Mictor connector (J25).
The pins of J24 are connected directly to pins on J25, and care must be
taken so that signal contention does not occur between the two
connectors.
Reference Manual
To Mictor Connector (J25)
JTAG Signals
TDI
TMS
TCK
TDO
TRST
Pin 1
J24
FPGA
(U62)
Altera Corporation
May 2007