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Component
Analog Ground (VSSA)
Unify Header, W3
Oscillator Select
Header, W4
(Use only one jumper in
this header.)
MCU Flash Size Select
Header, W5
Settings other than those
described here are not
currently supported.
(Use only one jumper in
this header.)
User's Manual
MOTOROLA
Table 2-1 Configuration Components (Continued)
Position
DISCONNECT: Separates analog ground references of the
processor and the board.
W3
3
Factory setting
1
CONNECT: Unifies analog ground references of the processor
and the target board: VSSA = VREF_LOW = AGND. (This
W3
configuration increases sensitivity to noise)
3
1
PFB: Specifies the oscillator clock signal from the platform board
(PFB).
W4
1
2
Factory setting
5
6
EM: Specifies the clock signal from the 4.915-megahertz oscillator
on the EM board at Y2 (EM).
W4
1
2
5
6
XTAL: Specifies the clock signal from a crystal installed at Y1
(XTAL).
W4
1
2
5
6
16K: Specifies an MCU flash size of 16K.
W5
Factory setting
1
2
9
10
15
16
8K: Specifies an MCU flash size of 8K.
W5
1
2
9
10
15
16
Preparation and Operation
Preparation and Operation
Configuring Board Components
Effect
M68EML08GZ16 Emulation Module - Version 4.0
21
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