User`s manual

Am486
®
Microprocessor PCI Customer Development Platform Users Manual
1-4
Board Installation
Note: See Figure 2-2 on page 2-4 for a block diagram of the board. See Figure
2-3 on page 2-5 for a layout diagram of the board, including connector locations
referenced in this section.
DANGER: Make sure the power supply and the VGA
monitor are
not
plugged into an electrical outlet during
the following steps.
1. Remove the board from the shipping carton. Visually inspect the board to verify
that it was not damaged during shipment. The board contains several jumpers.
The following steps assume all jumpers are in the factory default configuration
(settings are listed in Appendix A, “Default Settings”).
2. If you are installing a diskette drive, perform the following steps:
a. Inspect the 34-wire, diskette-drive cable that you are providing. The red
wire along one edge of the ribbon cable indicates wire 1. Most cables have
a connector for the board at one end and two or more connectors along the
length. There may be two different drive connectors at each location to
accommodate different drive types.
b. Connect one end of the diskette-drive cable to the 34-pin connector
(connector J6 at location E20) on the PCI CDP (with wire 1 oriented
towards the middle of the board). If there is a twist in one span of the cable,
connect the opposite end to the board.
c. Connect another connector on the diskette-drive cable to the diskette drive,
just as you would for a standard PC installation. If there is a twist in the
cable, the position you use determines whether the drive responds as A or
B (typically drive A connects to the end of the cable, beyond the twist). The
connector’s orientation should be indicated in the drive documentation, or
marked near the connector on the drive. Usually wire 1 is oriented towards
the drive’s power cable connector.
d. Find one of the 4-wire power connectors from the PC power supply and
attach it to the 4-pin connector on the diskette drive just as you would for
a standard PC installation.
!