Configuring The Eco Prescaler; Overview - Infineon XMC7000 Manual

Clock configuration setup in XMC7000 MCU family
Internal clock configuration
5.10

Configuring the ECO Prescaler

5.10.1

Overview

The ECO_Prescaler divides the ECO and creates a clock that can be used with CLK_LF. The division function has
a 10-bit integer divider and an 8-bit fractional divider.
Figure 38 shows the steps to enable ECO_Prescaler. For details on the ECO_Prescaler, see
architecture reference manual.
(1)
(2)
(3)
Note: Do not change the ECO_FRAC_DIV and ECO_INT_DIV settings when ECO_DIV_ENABLE = 1.
Figure 38 Enabling the ECO_Prescaler
Figure 39 shows the steps to disable the ECO_Prescalar. For details on the ECO_Prescaler, see
family architecture reference
(4)
(5)
Figure 39 Disabling the ECO_Prescaler
Application note
Start
Define ECO Prescaler Target Frequency
Configure 8-bit fractional value
Configure 10-bit integer value
ECO Prescaler enabled.
Wait until ECO Prescaler is available ?
Yes
End
manual.
Start
ECO Prescaler disabled.
Wait until ECO Prescaler is unAvailable ?
Yes
End
Set ECO Prescaler Target
Frequency
Configure 8-bit fractional value
Configure 10-bit integer value
ECO Prescaler enabled.
No
Wait until ECO Prescaler is available.
ECO Prescaler disabled.
No
Wait until ECO Prescaler is unavailable.
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XMC7000 MCU family
XMC7000 MCU
002-34253 Rev. *C
2023-11-08