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