Motorola MPC823e - Page 102

Clocks and Power Control
5-2 MPC823e REFERENCE MANUAL MOTOROLA
CLOCKS AND POWER
5
CONTROL
Figure 5-1. Clock Source and Distribution
SPLL
GCLK1/GCLK2
GCLK1C/GCLK2C
VCOOUT
CLKOUT
2:1 MUX
CLKOUT
XFC
TMBCLK
TMBCLK
VDDSYN
DRIVER
DRIVER
MAIN CLOCK
XTAL
EXTAL
2:1
MUX
RTC /PIT CLOCK
AND DRIVER
OSCILLATOR (OSCM)
2:1
MUX
TBCLK
(
÷ 4 OR ÷ 16 )
MODCK[1:2]
PITRTCLK
BRGCLK
EXTCLK
LCDCLK
SYNCCLK
GCLK2
TBS (SCCR)
RTSEL
GCLK1_50/GCLK2_50
LOW-POWER
DRIVERS
DIVIDERS
CLOCK
OSCCLK
÷ 4
÷ 512
2:1
MUX
RTDIV