MOTOROLA
Chapter 2. Signal Descriptions
2-11
Signal Summary
UC3F Flash 4
1I
EPEE
EPEE. This external program/erase enable control signal
externally controls the program or erase operations. When
held low, program or erase operations on the entire internal
Flash module are disabled. Available in the MPC563 only.
This signal is not connected on the MPC561.
1I
B0EPEE
B0EPEE. This control signal externally controls the program
or erase operations on block 0 of the internal Flash. When
held low, program or erase operations on block 0 only are
disabled. Available in the MPC563 only. This signal is not
connected on the MPC561.
1I
VFLASH
VFLASH. Flash supply voltage (5-V supply) used during all
operations of the UC3F. Available in the MPC563 only. This
signal is not connected on the MPC561.
1I
VDDF
VDDF. Flash core voltage input (2.6-V supply). Available in
the MPC563 only. This signal should be connected to VDD,
preferably directly to a 2.6V plane on the circuit board. This
signal is not connected on the MPC561.
1I
VSSF
VSSF. Flash core ground reference. Available in the
MPC563 only. This signal is not connected on the MPC561.
QADC64E_A and QADC64E_B
ETRIG[1:2] / PCS[6:7]
2
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ETRIG[1:2]
ETRIG[1:2]. These are the external trigger inputs to the
QADC64E_A and QADC64E_B modules. ETRIG1 can be
configured to be used by both QADC64E_A and
QADC64E_B. Likewise, ETRIG2 can be used by both
QADC64E_B and QADC64E_A. The trigger input signals
are associated with the scan queues.
O
PCS[6:7]. This signals provide QSPI peripheral chip select
when the enhanced PCS mode is selected.
A_AN0 / A_ANw / A_PQB0
1
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A_AN0
Analog Channel 0. Internally multiplexed input-only analog
channel. Passed on as a separate signal to the QADC64E.
I
Multiplexed Analog Input (A_ANw). Externally multiplexed
analog input.
I/O 5
Port A_PQB0. This is a bidirectional general-purpose I/O if
the QADC64E is configured in enhanced mode, otherwise it
is an input only.
A_AN1 / A_ANx/ A_PQB1
1
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A_AN1
Analog Channel 1. Internally multiplexed input-only analog
channel. Passed on as a separate signal to the QADC64E.
I
Multiplexed Analog Input (A_ANx). Externally multiplexed
analog input.
Port A_PQB1. This is a bidirectional general-purpose I/O if
the QADC64E is configured in enhanced mode, otherwise it
is an input only.
Table 2-1. MPC561/MPC563 Signal Descriptions (continued)
Signal Name
No. of
Signals
Type
Function after
Reset 1
Description