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VersaKit-30xx
3.3 H2 JTAG Interface Connector
The VJTAG-USB features a 5x2 female socket (H2), located on the bottom side of the PCB. H2 is used to access the
JTAG interface port of the VRS51L3074, which is installed on the devboard or target board.
On the devboard, the JTAG interface is accessed using a 5x2 male header. The header pin-out is shown below:
Figure 12: VJTAG-USB interface connector pin-out
The PWRCTRL line on the target board's JTAG header is optional. However, if the target board supply is from an
external source and the onboard regulator does not have a power control feature, uncheck "Automatic power control" in
the Versa Ware JTAG Software Device Options window.
Figure 13: Versa Ware Automatic power control setting
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