mfr4200 Freescale Semiconductor, Inc, mfr4200 Datasheet - Page 218

• Manufacturer Part Number: mfr4200
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

Oscillator (OSCV2)
the EXTAL input frequency. In full stop mode (PSTP = 0) the EXTAL pin is pulled down by an internal
resistor of typical 200 k:.
6.3
The OSCV2 block has two external pins, EXTAL and XTAL. The oscillator input pin, EXTAL, is intended
to be connected to either a crystal or an external clock source.
A buffered EXTAL signal, OSCCLK, becomes the internal reference clock. To improve noise immunity,
the oscillator is powered by the V
218
Functional Description
Freescale Semiconductor recommends an evaluation of the application
board and chosen resonator or crystal by the resonator or crystal supplier
The Crystal circuit is changed from standard.
The Pierce circuit is not suited for overtone resonators and crystals without
a careful component selection.
For more information on EXTAL and XTAL, see
— Crystal Driver
Pin”.
DDOSC
MFR4200 Data Sheet, Rev. 0
and V
SSOSC
NOTE
power supply pins.
Section 2.2.3.22, “XTAL
Freescale Semiconductor
.