Clocks and Power Control
MPC561/MPC563 Reference Manual, Rev. 1.2
8-2
Freescale Semiconductor
is a functional block diagram of the clock unit.
Figure 8-1. Clock Unit Block Diagram
2:1
SPLL
Clock
GCLK1 / GCLK2
GCLK1C / GCLK2C
VCOOUT
CLKOUT
3:1 MUX
XFC
TMBCLK
TMBCLK
Lock
VDDSYN
Drivers
Driver
Main Clock
XTAL
EXTAL
3:1
MUX
RTC / PIT Clock
and Driver
Oscillator
MUX
TBCLK
(/4 or /16)
MODCK[1:3]
PITRTCLK
EXTCLK
2:1 MUX
Low
Power
Dividers
(1/2N)
/4 or
GCLK2
Backup Clock
Detector
Oscillator Loss
ENGCLK
VSSSYN
Drivers
System Clock
System Clock
to RCPU and BBC
System
Low
Power
Control
/256
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...