XC2230L datasheet(87/112 Pages) INFINEON

Il numero della parte	XC2230L

Spiegazioni elettronici	16/32-Bit Single-Chip Microcontroller

PDF	112 Pages

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Produttore elettronici	INFINEON [Infineon Technologies AG]

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87 / 112 page

XC2230L, XC2234L

XC2000 Family / Econo Line

Electrical Parameters

Data Sheet

V1.3, 2015-02

4.7.2

Definition of Internal Timing

The internal operation of the XC223[04]L is controlled by the internal system clock

SYS.

Because the system clock signal

SYS can be generated from a number of internal and

external sources using different mechanisms, the duration of the system clock periods

(TCSs) and their variation (as well as the derived external timing) depend on the

mechanism used to generate

SYS. This must be considered when calculating the timing

for the XC223[04]L.

Figure 18

Generation Mechanisms for the System Clock

Note: The example of PLL operation shown in Figure 18 uses a PLL factor of 1:4; the

example of prescaler operation uses a divider factor of 2:1.

The specification of the external timing (AC Characteristics) depends on the period of the

system clock (TCS).

M C_XC2X_CLOCKGEN

Phase Locked Loop Operation (1:N)

Direct Clock Drive (1:1)

Prescaler Operation (N:1)

SYS

TCS

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