Table 6-45 High-Resolution PWM Characteristics at SYSCLKOUT = 50 MHz(1)–60 MHz
|Micro Edge Positioning (MEP) step size(2)
(1) The HRPWM operates at a minimum SYSCLKOUT frequency of 50 MHz. Below 50 MHz, with device process variation, the MEP step size may decrease under cold temperature and high core voltage conditions to such a point that 255 MEP steps will not span an entire SYSCLKOUT cycle.
(2) The MEP step size will be largest at high temperature and minimum voltage on VDD. MEP step size will increase with higher temperature and lower voltage and decrease with lower temperature and higher voltage.
Applications that use the HRPWM feature should use MEP Scale Factor Optimizer (SFO) estimation software functions. See the TI software libraries for details of using SFO function in end applications. SFO functions help to estimate the number of MEP steps per SYSCLKOUT period dynamically while the HRPWM is in operation.