MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 317

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Freescale Semiconductor
buclk_enable = (STBUC | LOC) and LME lock indicates loss of lock status
bit (LOCS) for all cases and loss of clock sticky bit (LOCSS) when state 3
is active. When buclk_enable is changed, the chip asserts HRESET to
switch the system clock to BUCLK or PLL.
At PORESET negation, if the PLL is not locked, the loss-of-clock sticky bit
(LOCSS) is asserted, and the chip should operate with BUCLK.
buclk_enable = 1
& hreset_b = 0
else
3,BUCLK
6,BULCK
Figure 8-8. Clock Source Switching Flow Chart
MPC561/MPC563 Reference Manual, Rev. 1.2
poreset_b = 1
LME = 1
buclk_enable=0
& hreset_b=0
buclk_enable = 1
& hreset_b = 0
1,BUCLK
2,BUCLK
NOTE
else
5, osc
4, osc
LME = 0
buclk_enable = 0
& hreset_b = 0
hreset_b = 0
else
LOCS=0
Clocks and Power Control
8-15