mc56f801 Freescale Semiconductor, Inc, mc56f801 Datasheet - Page 28

• Manufacturer Part Number: mc56f801
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

3.4 Block Diagram
Figure 3-2
relaxation oscillator as an 8MHz clock reference for the PLL.
28
GPIOB6 / RXD
provides a block diagram which shows how the 56F8014 creates its internal clock, using the
Detector
Lock
PLL
X 24
Figure 3-2 OCCS Block Diagram with Relaxation Oscillator
MUX
FOUT
Relaxation
OSC
÷ 3
÷ 2
MSTR_OSC
PRECS
56F8014 Technical Data, Rev. 9
Reference
TRIM[9:0]
ROSB
ROPD
Detector
Loss of
Clock
(÷ 1, 2, 4, 8, 16, 32)
(÷ 1, 2, 4, 8, 16, 32)
Postscaler
Postscaler
Loss of Reference Clock Interrupt
Bus Interface and
Control
LCK
PLLCOD
ZSRC
source to the SIM
HS PERF CLK
(96MHz max)
SYS_CLK_x2
(64MHz max)
Interface
Freescale Semiconductor
Bus
Preliminary