Datasheet

Internal Clock Source (RS08ICSV1)
MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor 77
Figure 9-2. Internal Clock Source (ICS) Block Diagram
9.2 External Signal Description
No ICS signal connects off chip.
9.3 Register Definition
Table 9-1 is a summary of ICS registers.
9.3.1 ICS Control Register 1 (ICSC1)
Table 9-1. ICS Register Summary
Name
76543 2 1 0
ICSC1
R 0
CLKS
0 0 0 0 0
IREFSTEN
W
ICSC2
R
BDIV
00
LP
000
W
ICSTRM
R
TRIM
W
ICSSC
R00000CLKST0
FTRIM
W
DCO
Filter
TRIM
9
CLKS
n=0-3
/ 2
n
Internal
Reference
Clock
BDIV
9
ICSOUT
1
ICSIRCLK
IREFSTEN
LP
ICSFFCLK
DCOOUT
FLL
(32 kHz)
1
ICSOUT is two times the bus frequency
ICSIRCLK
/ 2