Pulse DuMV@PCI Manual download pdf (Page 26)

JTAG header (JP3)

A 12-pin header allows user access to the JTAG signals on the mezzanine card card and the motherboard.

Normally these signals are passed through with 6 jumpers, with the ground jumper being a spare.

Pin Function

Mezzanine

Header Pin

Number

Header Pin

Number

Pin Function

PCI Express

TDI 1 2 TDO

TDO 3 4 TDI

TCLK 5 6 TCLK

TMS 7 8 TMS

TRST 9 10 TRST

GND 11 12 GND

Table 7 JTAG functions JP3

If access to the JTAG chain on the PMC is needed remove the jumpers to allow use of a custom cable.

Most 0.1 inch center to center female headers will work, but check the datasheet to determine compatibility

with the mechanical dimensions shown.

Figure 11 JTAG Factory jumper setting

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 44 45

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Pulse DuMV@PCI Manual Page 26