PowerQUICC™ MPC8313E Reference Design Board (RDB), Rev. 4
10
Freescale Semiconductor
Board-Level Functions
2.3
Clock Distribution
Figure 6
and
Table 2
show the clock distribution on the MPC8313E RDB.
Figure 6. MPC8313E-RDB Clock Scheme
MPC8313E
LCLKx (NC)
local bus
PLL
DDR
PLL
PCI
DIV
66.666 MHz
OSC
CLKIN
33/66 MHz
33/66 MHz
Mini PCI Slot
PCI Slot
OCCR
2
PCI_SYNC_OUT
PCI_SYNC_IN
System
PLL
M66EN
33/66 MHz
CFG_CLKIN_DIV
NC
48 MHz
OSC
25 MHz
OSC
USB
CLKIN
L2 Switch
GBE PHY
GTX_CLK125
SD_REF_CLK
50 MHz OSC/
50 MHz VCXO
IEEE1588
TMR CLK
0
1
2
ULPI USB
GND
GND
24 MHz
Crystal
PHY
Real-Time
GND
GND
32.768 KHz
Crystal
Clock
DDR2 SDRAM
CLK
MCK
MCK#
133 MHz
PLL
125 MHz
LVDS
OSC
125MHz
