5
USB930HXADBD ADAPTER BOARD USER’S GUIDE
3.0
BOARD LAYOUT
Figure 4
shows the layout of the board and the major components.
Figure 4. Adapter Board Layout
4.0
FEATURES
4.1
CPU Foot Print
The Adapter Board has the foot print for a 68-pin PLCC socket to match the pinout of the
8x930Hx.
4.2
External Clock Oscillator/Crystal
The board provides space for a crystal and a capacitor to use the internal oscillator of the 8x930Hx
and also contains a clock oscillator that produces an independent external clock source for the
8x930Hx. Only one clock source can be used at a time. By default the clock oscillator is used and
the crystal and capacitor are not populated. To use the internal oscillator, you must cut Jumper
JW1 and install the appropriate crystal and capacitor.
A5526-01
3"
3"
Top View
Side View
Interfaces to 82930
USBM Eval Board
P7
P6
39 40
2
Y1
1-2
1-2
2-3
12
12
1-2
2-3
2-3
6
1.5
2-3
2-3
1-2
3
1.5
PLL2 PLL1 PLL0 Data Freq
1
39 40
2
1
10µ
16v
U2
U1
