Motorola MPC564EVB, User Manual

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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 8 7 IRQ6
IRQ5 / SGPIO5
6 5
IRQ4 / SGPIO4
IRQ3 / SGPIO3 4 3 IRQ2 / SGPIO2
IRQ1 / SGPIO1 (IRQ_100) 2 1 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