Cop Enable Header (J20); Pci Bus 0.0 Speed Header (J25); Table 5-30. Cop Enable Header (J20) Pin Assignments; Table 5-31. Pci Bus 0.0 Speed Header (J25) Pin Assignments - Motorola MVME5500 Installation And Use Manual

COP Enable Header (J20)

A 2-pin 2 mm planar header enables the Riscwatch capability. A jumper
installed enables the Riscwatch. Remove the jumper to provide boundary
scan access for lab use. The pin assignments for this header are as follows:

Table 5-30. COP Enable Header (J20) Pin Assignments

PCI Bus 0.0 Speed Header (J25)

A 2-pin 2 mm planar header provides the capability to force PCI Bus 0.0
to run at 33 MHz rather than allowing the PMC to control the bus to run at
33 or 66 MHz. No jumper installed allows the PMC to choose the PCI Bus
0.0 speed. A jumper installed across pins 1-2 forces PCI Bus 0.0 to run at
33 MHz. The pin assignments for this header are as follows:
http://www.motorola.com/computer/literature
Pin
1
2
Table 5-31. PCI Bus 0.0 Speed Header (J25) Pin
Assignments
Pin
1
2
COP Enable Header (J20)
Signal
COP_EN_L
GND
Signal
P0_M66EN
GND
5
5-43