Keyboard

4.3.2.1Global Configuration

The following is a description of the Global Resources that are configured for the CY7C60123-PVXC enCoRe II LV microcontroller. Care must be taken when modifying these values as they affect the User Modules discussed below.

CPU Clock

This parameter is set to Internal (24 MHz). In order to run the CPU at 12 MHz, CPU Clock/N needs to be set to ‘2’. This operating frequency provides for faster code execution so that when events are detected the microcontroller can be put back into the sleep state quicker for improved power sav- ings.

CPU Clock / N

This parameter is set to ‘2’ to provide a 12 MHz clock.

Timer Clock

This parameter is set to TCAP.

Timer Clock /N

This parameter is set to ‘4’.

Capture Clock

This parameter is set to Low Power (32 kHz).

Capture Clock /N

This parameter is set to ‘6’.

Capture Edge

This parameter is set to Latest.

8 Bit Capture Prescaler

This parameter is set to ‘1’.

CLKOUT Source

This parameter is set to Internal (24 MHz).

EFTB

This parameter is set to Enable.

Crystal OSC

This parameter is set to Disable.

Crystal OSC Xgm

This parameter is set to 000.

Low V Detect

This parameter is set to 2.63V–2.68V.

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CY4672 Reference Design Guide, Document # 001-16968 Revision **

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Cypress CY4672 manual This parameter is set to Tcap, This parameter is set to ‘1’, This parameter is set to Internal 24 MHz