Motorola MVME2400 User Manual

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Preparing and Installing the MVME2400-Series Module

– If you intend to use the MVME240x as system controller, it must

occupy the leftmost card slot (slot 1). The system controller must
be in slot 1 to correctly initiate the bus-grant daisy-chain and to
ensure proper operation of the IACK daisy-chain driver.

– If you do not intend to use the MVME240x as system controller,

it can occupy any unused card slot.

Caution

Avoid touching areas of integrated circuitry; static discharge
can damage these circuits.

4. Slide the MVME240x (and PMCspans if used) into the selected card

slot(s). Be sure the module or modules is/are seated properly in the
P1 and P2 connectors on the backplane. Do not damage or bend
connector pins.

5. Secure the MVME240x (and PMCspans if used) in the chassis with

the screws provided, making good contact with the transverse
mounting rails to minimize RF emissions.

Note

Some VME backplanes (e.g., those used in Motorola
“Modular Chassis” systems) have an auto-jumpering feature
for automatic propagation of the IACK and BG signals. Step
6 does not apply to such backplane designs.

6. On the chassis backplane, remove the

INTERRUPT ACKNOWLEDGE

(IACK) and

BUS GRANT

(BG) jumpers from the header for the card

slot occupied by the MVME240x.

7. If you intend to use PPCBug interactively, connect the terminal that

is to be used as the PPCBug system console to the

DEBUG

port on

the front panel of the MVME240x.

In normal operation the host CPU controls MVME240x operation
via the VMEbus Universe registers.