參數(shù)資料
型號: EML08GP32UM
英文描述: M68EML08GP32 M68EML08GP32 Emulation Module Users Manual
中文描述: M68EML08GP32 M68EML08GP32仿真模塊用戶手冊
文件頁數(shù): 8/52頁
文件大?。?/td> 669K
代理商: EML08GP32UM
User’s Manual
M68EML08GP32 Emulator Module — Rev. 1
16
Configuration and Operation
MOTOROLA
Configuration and Operation
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.
2.3 System Limitations
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.
2.4 Setting Jumper Headers
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.
Table 2-1. Jumper Headers
Jumper
Header
Type
Description
P3
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
P5
Factory use only; should be left open
1
3
5
7
2
4
6
8
1
2
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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