MVME5500 Single-Board Computer Installation and Use - Bustec

1
Hardware Preparation and Installation
CPU COP Enable Header (J20)
A 2-pin planar header enables the Riscwatch capability. No jumper
installed disables COP and enables boundary scan. A jumper across pins
1-2 enables the COP emulator debug.
PCI Bus 0.0 Speed Header (J25)
1
2
J20
Disables COP;
enables boundary scan
A 2-pin planar header that can force PCI bus 0.0 to run at 33 MHz rather
than the standard method of allowing the PMC board to control whether
the bus runs at 33 MHz or 66 MHz. No jumper installed allows the PMC
board to choose the PCI 0.0 bus speed. A jumper installed across pins 1-2
forces PCI bus 0.0 to run at 33 MHz.
1
2
J25
PMC board controls
PCI 0.0 bus speed
(factory configuration)
1-14 Computer Group Literature Center Web Site
1
2
J20
Enables COP
emulator debug
(factory configuration)
1
2
J25
Force PCI bus 0.0
to run at 33 MHz