XC2269I Datasheet, PDF (103/134 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller

XC2269I
XC2000 Family Derivatives / Premium Line
Electrical Parameters
PLL Frequency Band Selection
Different frequency bands can be selected for the VCO so that the operation of the PLL
can be adjusted to a wide range of input and output frequencies:
Table 28 System PLL Parameters
Parameter
Symbol
Min.
VCO output frequency
(VCO controlled)
f_VCO CC 50
100
200
VCO output frequency
(VCO free-running)
f_VCO CC 10
20
40
Values
Typ. Max.
−
110
−
200
−
280
−
40
−
80
−
160
Unit Note /
Test Condition
MHz
MHz
MHz
MHz
MHz
MHz
VCOSEL = 00_B
VCOSEL = 01_B
VCOSEL = 10_B
VCOSEL = 00_B
VCOSEL = 01_B
VCOSEL = 10_B
FlexRay PLL Parameters
This PLL unit is dedicated for usage with the FlexRay module. FlexRay operation
requires a high precision clock signal to fulfil the protocol timing requirements. If the
system clock is generated by use of a crystal it is mandatory to adjust the crystal
parameters in your target system. Please refer also to Chapter 4.6.3 for details.
Table 29 PLL Low-Jitter Parameters
Parameter
Symbol
Min.
VCO output frequency
(VCO controlled)
f_VCA CC 480
VCO output frequency
(VCO free-running)
f_VCA CC 80
Values
Typ. Max.
−
480
−
340
Unit Note /
Test Condition
MHz
MHz
Note: Set bit STMEM0.SFAR = 1 before selecting a system frequency above 80 MHz to
avoid an inadvertent waitstate violation after an application reset (caused by the
default setting).
Data Sheet
103
V1.3, 2014-07