Freescale Semiconductor MPC8260 - Manual (Page 233)

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MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
Freescale Semiconductor 5-11
Figure 5-6. Configuring a Single Chip from EPROM
5.4.2.3 Multiple PowerQUICC IIs Configured from Boot EPROM
For a complex system with multiple PowerQUICC II devices that may each be configured differently,
configuration is done by assigning one configuration master and multiple configuration slaves. The
PowerQUICC II that controls the boot EPROM should be the configuration master—RSTCONF tied to
GND. The RSTCONF inputs of the other PowerQUICC II devices are tied to the address bus lines, thus
assigning them as configuration slaves. See
Figure 5-7 .
Configuration Master Chip
PORESET
PORESET
Boot EPROM
EPROM Control Signals
RSTCONF
D[0–31]
D[0–7] A[0–31]
A[..] HRESET
VCC
Addr
ess Bus
D
a
ta
B
u
s