EML08GP32UM Freescale Semiconductor / Motorola, EML08GP32UM Datasheet - Page 17

• Manufacturer Part Number: EML08GP32UM
• Description: M68EML08GP32 M68EML08GP32 Emulation Module Users Manual
• Manufacturer: Freescale Semiconductor / Motorola

2.4.1 Clock Source Header (P3)
M68EML08GP32 Emulator Module — Rev. 1
MOTOROLA
NOTE:
Jumper header P3 in Figure 2-1 determines the clock signal source. The factory
configuration (the fabricated jumper between pins 5 and 6) selects the clock
signal from the MMDS control board or MMEVS platform board. You must use
the system software to select the appropriate clock frequency.
Alternately, three other clock signal sources can be selected, as shown in
Figure 2-1.
Only one jumper should be inserted on jumper header P3 at a time. Inserting
multiple jumpers in P3 might damage the GP32EM.
Jumper
Header
•
•
•
Freescale Semiconductor, Inc.
P8
For More Information On This Product,
To select the target system as the clock source, install the fabricated
jumper between pins 1 and 2. Ensure that the clock source (OSC1) is
connected to the EM through the target cable, connector P6 pin 3.
To select the on-board 32.768-kHz crystal oscillator, install the
fabricated jumper between pins 3 and 4.
To select an on-board 32-MHz clock signal as the clock source, install
the fabricated jumper between pins 7 and 8.
Configuration and Operation
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1 2
Table 2-1. Jumper Headers (Continued)
Type
Figure 2-1. Jumper Header P3
EXTERNAL 1
Jumper installed (factory default); on-board V
selected as the source for V
No jumper installed; V
system.
32.768 kHz 3
32 MHz 7
MMDS 5
Description
P3
DDAD
is supplied from the target
DDAD
Configuration and Operation
2
4
6
8
Setting Jumper Headers
.
User’s Manual
DD
is
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