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): 9/52頁
文件大小: 669K
代理商: EML08GP32UM
Configuration and Operation
Setting Jumper Headers
M68EML08GP32 Emulator Module — Rev. 1
User’s Manual
MOTOROLA
Configuration and Operation
17
2.4.1 Clock Source Header (P3)
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.
Figure 2-1. Jumper Header P3
Alternately, three other clock signal sources can be selected, as shown in
Figure 2-1.
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.
NOTE:
Only one jumper should be inserted on jumper header P3 at a time. Inserting
multiple jumpers in P3 might damage the GP32EM.
Jumper
Header
Type
Description
P8
Jumper installed (factory default); on-board VDD is
selected as the source for VDDAD.
No jumper installed; VDDAD is supplied from the target
system.
Table 2-1. Jumper Headers (Continued)
12
P3
EXTERNAL
1
2
32.768 kHz
3
4
MMDS
5
6
32 MHz
7
8
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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