mc9s12c32mpb16 Freescale Semiconductor, Inc, mc9s12c32mpb16 Datasheet - Page 658

• Manufacturer Part Number: mc9s12c32mpb16
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Appendix A Electrical Characteristics
The relative deviation of t
number of clock periods (N).
Defining the jitter as:
For N < 100, the following equation is a good fit for the maximum jitter:
This is very important to notice with respect to timers, serial modules where a pre-scaler will eliminate the
effect of the jitter to a large extent.
658
0
t
min1
t
nom
t
max1
J(N)
nom
1
J N
Figure A-4. Maximum Bus Clock Jitter Approximation
( )
is at its maximum for one clock period, and decreases towards zero for larger
1
=
max 1
MC9S12C-Family / MC9S12GC-Family
5
Figure A-3. Jitter Definitions
2
⎛
⎜
⎝
J N
( )
10
–
Rev 01.23
t
-------------------- -
N t
t
=
minN
max
t
maxN
⋅
------- -
j
nom
1
( )
N
3
N
+
,
j
2
1
–
20
-------------------- -
N t
t
min
⋅
nom
( )
N
N-1
⎞
⎟
⎠
N
Freescale Semiconductor
N