MPC8572EAMC Freescale Semiconductor, MPC8572EAMC Datasheet - Page 44

• Manufacturer Part Number: MPC8572EAMC
• Description: MPC8572 AMC RAPID SYSTEM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8572EAMC

• Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: MPC8572E

MPC8572EAMC Functional Description
5.3.2
A 16-MHz crystal is used to produce the RTC clock input.
configured on the MPC8572EAMC. Users should note that the 16-MHz crystal oscillator is not populated
on the MPC8572EAMC. The real time clock can either be used locally on board (by populating the
16-MHz crystal), or the System CPLD logic can be programmed to allow the RTC to drive the RTC
externally onto one of the AdvancedMC clock pins (such as FCLKA/TCLKA-D).
5.3.3
The DDRCLK can be used to separately clock the DDR interface, rather than the main CCB clock. A
66.66-MHz crystal is used to produce the DDRCLK clock input as shown in
5-20
MPC8572EAMC Real Time Clock (RTC)
MPC8572EAMC DDR Clock (DDRCLK)
MPC8572EAMC Advanced Mezzanine Card User Guide, Rev. 1.2
Figure 5-12. DDRCLK Configuration
Figure 5-11. RTC Configuration
Figure 5-11
illustrates how the RTC is
Figure
Freescale Semiconductor
5-12.