Control Subsystem Peripherals Clocking - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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Clock Control

Enabling/Disabling Clocks to the Peripheral Modules

The PCLKCR0/1/2/3 registers enable/disable clocks to the various peripheral modules. There is a 2-

SYSCLKOUT cycle delay from when a write to the PCLKCR0/1/2/3 registers occurs to when the action is

valid. This delay must be taken into account before attempting to access the peripheral configuration

registers. Due to the peripheral-GPIO multiplexing at the pin level, all peripherals cannot be used at the

same time. While it is possible to turn on the clocks to all the peripherals at the same time, such a

configuration may not be useful. If this is done, the current drawn will be more than required. To avoid this,

only enable the clocks required by the application.

System Control and Interrupts

Figure 1-13. Control Subsystem Peripherals Clocking

CLOCK ENABLES FROM

PCLKCR Registers

ePWM 1 to 9 and HRPWM

eCAP1/../6, eQEP1/2/3

Clock Enables

SPRUHE8E – October 2012 – Revised November 2019

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