Freescale Semiconductor MPC566EVB, User Manual, Page: 32 / 100

1-22 MPC566EVB User’s Manual
Connectors and User Components
1.5.4 MPC566EVB Hardware Options
XFC Filter Capacitor C5
Capacitor C5 provides the XFC filtering for the PLL circuits. The capacitor may be changed by
the user if PLL locking problems are experienced at the frequency of operation selected or if the
reference crystal is replaced. Current value is 3.3nF.
VRH and VRL QADC Reference Supplies
EVB zero ohm resistors R4 and R5 provide connection to MPC566 VDDA and VSSA for VRH
and VRL reference signals respectfully. One or both of these resistors can be removed to apply an
external reference voltage to the QADC_A Port.
EPEE and BOEPEE CUTAWAY E0
The MPC566EVB board has the EPEE and BOEPEE signals connected by CUT_AWAY pad E0.
This connection is for NEXUS port programming of the MPC566 internal flash. This connection
will cause the CONFIG_SW position 7 or 8 to enable both signals. If this operation is not desired
by the user, cut the CUT-AWAY E0 pad to isolate the signals from each other.
1.5.5 Signals Available on Board
1.5.5.1 IRQ PORT
The IRQ Port provides access to the MPC566 Port C I/O or IRQ inputs on a 10 pin socket header.
1.5.5.2 BUS_PORT
The BUS Port provides the data and address line access to the MPC566 memory bus on a 60 pin
header.
SIGNAL PIN PIN SIGNAL
IRQOUT / SGPIO7 10 9 FRZ / SGPIO6
IRQ7
8 7
IRQ6
IRQ5 / SGPIO5 6 5 IRQ4 / SGPIO4
IRQ3 / SGPIO3 4 3 IRQ2 / SGPIO2
IRQ1 / SGPIO1 (IRQ_100) 2 1 IRQ0 / SGPIO0 (BRK_EN)
BUS PORT
SIGNAL PIN PIN SIGNAL
GND 60 59 +2.6V
A31
58 57
A30
A29 56 55 A28
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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