Jtag Connector To Epm7128Ae Device (J5) - Altera Nios II Cyclone Edition Reference Manual

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JTAG Connectors

1–30

Nios Development Board Reference Manual, Cyclone Edition

Figure 1–22. JTAG Connector (J24) to Cyclone Device

Figure 1–23. JTAG Connection to Download Cable

Pin 1

J24

The Cyclone device'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.

JTAG Connector to EPM7128AE Device (J5)

J5 connects to the JTAG pins (TCK, TDI, TDO, TMS, TRST) of the

EMP7128AE device (U3) as shown in

software can perform in-system programming (ISP) to reprogram the

EMP7128AE device (U3) with a new hardware configuration via an

Altera download cable.

Note that the orientation of J5 is rotated 180

Figure

1–24. Altera Quartus II

compared to J24.

Altera Corporation

December 2004

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