EML08GP32UM Freescale Semiconductor / Motorola, EML08GP32UM Datasheet - Page 16

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

Configuration and Operation
2.3 System Limitations
2.4 Setting Jumper Headers
User’s Manual
16
ESD CAUTION:
Ordinary amounts of static electricity from clothing or the work environment
can damage or degrade electronic devices and equipment. For example, the
electronic components installed on printed circuit boards are extremely
sensitive to electrostatic discharge (ESD). Wear a ground wrist strap whenever
handling any printed circuit board. This strap provides a conductive path for
safely discharging static electricity to ground.
To use the ADC (analog-to-digital converter) when emulating JL3, bit 4 of
ADICLK at address $3E must be set. It is cleared out of reset. Otherwise, the
ADC will run on a clock four times faster.
The GP32EM has two jumper headers. Table 2-1 contains a summary of
settings for these headers. 2.4.1 Clock Source Header (P3) and 2.4.2 Factory
Test Select Header (P5) give additional information about each jumper header.
Jumper
Header
Freescale Semiconductor, Inc.
P3
P5
For More Information On This Product,
1
3
5
7
Configuration and Operation
Go to: www.freescale.com
1
2
Type
2
4
6
8
Table 2-1. Jumper Headers
Jumper between pins 1 and 2; selects an external clock
source for the MCU EXTAL input signal from target
head connectors
Jumper between pins 3 and 4; selects the onboard
32.768-kHz crystal oscillator
Jumper between pins 5 and 6 (factory default); selects
the clock signal from the MMDS control board or
MMEVS platform board
Jumper between pins 7 and 8; selects an on-board 32
MHz clock signal
Factory use only; should be left open
M68EML08GP32 Emulator Module — Rev. 1
Description
MOTOROLA