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M68EML08EY Emulation Module - Version 1.0
User’s Manual
18
Preparation and Operation
MOTOROLA
Preparation and Operation
ADJ: Specifies the adjustable voltage that variable resistor
VR1 (if installed) controls (2.7V to 5.5V).
Oscillator Select
Header, W4
(Use only one jumper
in this header.)
PFB: Specifies the oscillator clock signal from the platform
board (PFB).
Factory setting
EM: Specifies the clock signal from the 4.915-megahertz
oscillator on the EM board at Y2 (EM).
XTAL: Specifies the clock signal from a user-supplied crystal
installed at Y1 (XTAL).
Analog Ground
(VSSA) Unify Header,
W1
DIS: Separates analog ground references of the processor
and the board.
Factory setting
EN: Unifies analog ground references of the processor and
the target board: VSSA = VREF_LOW = AGND. (This
configuration increases sensitivity to noise.)
MCU Emulation
Select Header, W3
EY16: Specifies emulation of an EY16 processor.
Factory setting
EY8: Specifies emulation of an EY8 processor.
Table 2-1 Configuration Components (Continued)
Component
Position
Effect
W2
6
5
2
1
W4
6
5
2
1
W4
6
5
2
1
W4
6
5
2
1
W1
1
3
W1
1
3
W3
1
3
W3
1
3
Содержание M68EML08EY
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