S912XEQ384J3MALR Freescale Semiconductor, S912XEQ384J3MALR Datasheet - Page 501

• Manufacturer Part Number: S912XEQ384J3MALR
• Description: S912XEQ Series 16 Bit 50 Mhz 384 KB Flash 24 KB Ram Microcontroller - LQFP-112
• Manufacturer: Freescale Semiconductor

from the EXTAL input frequency. In full stop mode (PSTP = 0), the EXTAL pin is pulled down by an
internal resistor of typical 200 kΩ.
Freescale Semiconductor
Figure 12-2. Loop Controlled Pierce Oscillator Connections (LCP mode selected)
Freescale recommends an evaluation of the application board and chosen
resonator or crystal by the resonator or crystal supplier.
Loop controlled circuit is not suited for overtone resonators and crystals.
Full swing Pierce circuit is not suited for overtone resonators and crystals
without a careful component selection.
Figure 12-3. Full Swing Pierce Oscillator Connections (FSP mode selected)
Figure 12-4. External Clock Connections (FSP mode selected)
* R
MCU
Refer to manufacturer’s data.
s
EXTAL
can be zero (shorted) when use with higher frequency crystals.
XTAL
MC9S12XE-Family Reference Manual Rev. 1.24
MCU
MCU
EXTAL
EXTAL
XTAL
XTAL
RS*
RB
Not Connected
NOTE
NOTE
Ceramic Resonator
Crystal or
CMOS Compatible
External Oscillator
Ceramic Resonator
(V
C1
C2
DDPLL
Crystal or
C1
C2
Level)
V
SSPLL
Chapter 12 Pierce Oscillator (S12XOSCLCPV2)
V
SSPLL
501