mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 157

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
frequency
The frequency is not necessarily linear with the temperature (in most cases
it will not be). The above diagram is meant only to give the direction
(positive or negative) of the variation of the TC, relative to the nominal TC.
Setting TCTRIM[4:0] at 0x00000 or 0x10000 does not mean that the
temperature coefficient will be zero. These two combinations basically
switch off the TC compensation module, which results in the nominal TC of
the IRC1M.
- 40C
Figure 4-29. Influence of TCTRIM[4:0] on the Temperature Coefficient
TCTRIM[4:0] = 0x10000 or 0x00000 (nominal TC)
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
NOTE
150C
Clock, Reset and Power Management (S12CPMU_UHV)
0x11111
...
0x10101
0x10100
0x10011
0x10010
0x10001
0x00001
0x00010
0x00011
0x00100
0x00101
...
0x01111
TC increases
TC decreases
temperature
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