SAB-C167CR-LM Infineon Technologies AG, SAB-C167CR-LM Datasheet - Page 55

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SAB-C167CR-LM

Manufacturer Part Number
SAB-C167CR-LM
Description
16-bit microcontroller with 2x2 KByte RAM
Manufacturer
Infineon Technologies AG
Datasheet
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for one single TCL (see formula and
For a period of
deviation D
where
So for a period of 3 TCLs @ 25 MHz (i.e.
and (3TCL)
This is especially important for bus cycles using waitstates and e.g. for the operation of
timers, serial interfaces, etc. For all slower operations and longer periods (e.g. pulse train
generation or measurement, lower baudrates, etc.) the deviation caused by the PLL jitter
is neglectible.
Note: For all periods longer than 40 TCL the N = 40 value can be used (see
Figure 10
Data Sheet
±26.5
±30
±20
±10
ns
±1
(
N
N
= number of consecutive TCLs
Max. jitter
1
× TCL)
N
min
This approximated formula is valid for
1 N
:
Approximated Maximum Accumulated PLL Jitter
= 3TCL
5
40 and 10 MHz
min
N
D
N
× TCL the minimum value is computed using the corresponding
=
NOM
10
N
× TCL
- 1.288 ns = 58.7 ns (@
f
CPU
NOM
33 MHz.
- D
Figure
20
N
N
51
D
and 1 ≤
= 3): D
10).
N
[ns] = ± (13.3 +
N
3
f
CPU
= (13.3 +
≤ 40.
= 25 MHz).
N
3
× 6.3) /
× 6.3) / 25 = 1.288 ns,
40
f
10 MHz
16 MHz
20 MHz
25 MHz
33 MHz
CPU
V3.2, 2001-07
Figure
[MHz],
C167CR
C167SR
MCD04413
N
10).

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