User`s manual

1-22 MPC564EVB User’s Manual
Connectors and User Components
VRH and VRL QADC Reference Supplies
EVB zero ohm resistors R4 and R5 provide connection to MPC564 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 MPC564EVB board has the EPEE and BOEPEE signals connected by CUT_AWAY pad E0.
This connection is for NEXUS port programming of the MPC564 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 MPC564 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 MPC564 memory bus on a 60 pin
header.
SIGNAL PIN PIN SIGNAL
IRQOUT / SGPIO7
10 9
FRZ / SGPIO6
IRQ7
87
IRQ6
IRQ5 / SGPIO5
65
IRQ4 / SGPIO4
IRQ3 / SGPIO3
43
IRQ2 / SGPIO2
IRQ1 / SGPIO1 (IRQ_100)
21
IRQ0 / SGPIO0 (NEXUS MDO_4)
BUS PORT
SIGNAL PIN PIN SIGNAL
GND
60 59
+2.6V
A31
58 57
A30
A29
56 55
A28
A27
54 53
A26
A25
52 51
A24
A23
50 49
A22
A21
48 47
A20
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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