MPC852TADS Freescale Semiconductor, MPC852TADS Datasheet - Page 20
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MPC852TADS
Manufacturer Part Number
MPC852TADS
Description
Networking Modules & Development Tools ADS BOARD FOR 852
Manufacturer
Freescale Semiconductor
Type
Network Controller & Processorr
Datasheet
1.MPC852TADS.pdf
(124 pages)
Specifications of MPC852TADS
Memory Type
Flash, SDRAM
Interface Type
RS-232, Ethernet, PCMCIA
Operating Voltage
1.8 V to 3.3 V
Operating Temperature Range
0 C to + 30 C
Board Size
233 mm x 150 mm
Product
Modules
For Use With/related Products
MPC852T
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8
2•3•1
Turn off the power prior to replacing the MPC. Note the location of the original MPC A1 pin when replacing a U1
with another MPC. Set the new MPC in the same direction as the previous one.
2•3•2
The clock source for the MPC is selected by J1. When a jumper is placed between position 1-2, On board Clock is
selected either 10MHz Clock generator or 10MHz Crystal resonator depending on SW4 position.
When a jumper is placed between position 2-3, External Clock is selected.
2•3•3
The on board clock source for the MPC is selected by SW4. The on-board 10MHz crystal resonator connected
between EXTAL and XTAL MPC pins, becomes the clock source when SW4[1-2] = [’ON’,’ON’] or [’ON’,’OFF’]
and the ADS is powered-up. However, when SW4[1-2] = [’OFF’,’ON’] or [’OFF’,’OFF’] but the ADS is powered-
up, then the on-board 10MHz clock generator connected to EXTCLK MPC pin, becomes the clock source. Clkout is
calculated by CLK_IN, 10MHz, multiplied by the PLL multiplication factor. See
DPLL Configuration" on page
MPC Replacement of U1
Clock Source Selection - J1
Modin Selection - SW4
Crystal resonator circuit is not assembled on board.
On Board Clock
Freescale Semiconductor, Inc.
FIGURE 2-4 Clock Source Selection - J1
For More Information On This Product,
1
Hardware Preparation and Installation
9.
FIGURE 2-3
J1
Go to: www.freescale.com
MPC852TADS - User’s Manual
A1
MPC
NOTE
MPC TOP-VIEW
1
External Clock
J1
TABLE 2-1. "Power ON Reset
Release 1.0
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