Motorola MBX Series Installation And Use Manual page 81

If you are installing a PCMCIA card with DMA capability, the routing of
the PCMCIA INPACK# signal needs to be defined using jumper header
J11. Refer to the PCMCIA vendor documentation for specifics on the card
you intend to install; if the DREQ# signal is routed via INPACK# or
BVD2_SPKR, set J11 as indicated in the following table.
For non-DMA cards, place a jumper on J11 pins 2 and 3 to permit use of
the BVD2_SPKR signal.
The factory configuration uses pins 1 and 2 on J11.
DREQ# Signal on INPACK# Pin
http://www.motorola.com/computer/literature
J11 DREQ# Signal Source for DMA-type PCMCIA Cards
If the DMA DREQ# Signal is on . . .
INPACK#
BVD2_SPKR
J11
1 2 3
(factory configuration)
Jumper Pins
1-2
2-3
J11
1 2 3
DREQ# Signal on BVD2_SPKR Pin
6
2153 9802
6-11