Configuration Ports; Jtag Termination Jumper - Xilinx Virtex-II Pro User Manual

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3. Configuration Ports

These headers can be used to connect a Parallel Cable III or Parallel Cable IV cable to the
board and support all Virtex-II Pro device configuration modes. (See
connecting the cables to the Configuration Ports.)
Table 1-2: Slave Serial Mode

4. JTAG Termination Jumper

The JTAG termination jumper is used to short the TDI pin of the downstream System ACE
connector to the TDO pin of the upstream System ACE connector for the final board in a
chain.
TCK and TMS are parallel feedthrough connections from the upstream System ACE
connector to the downstream System ACE connector and drive the TCK and TMS pins of
the onboard PROMs and the DUT.
Figure 1-3
16
Configuration Port Header
VCC3
GND
CCLK
DONE
D0
PROG
INIT
Note: The termination jumper must be in place on the last board in the chain to connect the TDO
pin of the final device to the TDO feedback chain.
shows the setup of the JTAG chain on the board.
UP
DN
Figure 1-3: JTAG Chain Termination
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Chapter 1: Virtex-II Pro Prototype Platform
Parallel Cable III/IV Pins
VCC
GND
CCLK
D/P
DIN
PROG
TDI
TMS
TCK
TDO
Virtex-II Pro Prototype Platform User Guide
UG027 / PN 0402044 (v1.6) October 25, 2002
Table 1-3 for
PROM1
TDO
TDI
PROM2
TDO
TDI
DUT
TDO
UG027_03_030102