User`s manual

14 Minimal PowerPC 603e Evaluation Board MOTOROLA
Part 7 Summary
The EXCIMER kit is a vehicle for exploring the PowerPC architecture and simple embedded software
development. The kit is meant to be a low-cost example of a PowerPC design suitable for learning, teaching,
or experimenting. Substantive applications that require large memory, PCI devices, or other advanced
features should explore the Yellowknife platform also available from Motorola or evaluation systems from
numerous third party vendors.
1011 5x 2x 333 Not recommended
1001 5.5x 2x 366 Not recommended
1101 6x 2x 400 Not recommended
0011 PLL bypass 66 Not recommended
1111 Clock off Board will be inop
Table 5. Excimer Frequency (PLL_CFG jumper ) Settings
Jumper
Position
(seen as
pin1 pin2 pin3)
PLL_CFG[0Ð3]
CPU Frequency in MHz (VCO
Frequency in MHz)
Comment
Bus-to-
Core
Multiplier
Core-to
VCO
Multiplier
Bus
66.67
MHz
Vdd CFG
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3
0
1
2
3