In the middle of 24MHz xtal start-up timing investigation, I found our SW configures RC_OSC_EN bit  in PMU_LOWPWR_CTRLn register as 0 which means it uses RC OSC for 24MHz clock source.
In the SW source code, I found the following comments.
"In low power idle mode, 24MHz XTAL power will be off and 24MHz clk source will be switched to RC-OSC to save power, this feature is only enabled on i.MX6SX TO1.2."
I thought our HW and SW designed for using a discrete 24MHx xtal as the 24MHz clock source. but this configuration and comment confuse me.
When we change the bit to 0 so that we use XTAL OSC for 24MHz, what potetial impacts we would consider?
Power consumption is not at critical factor in our application.
The main disadvantage of the internal RC OSC is its low accuracy.
When a high-accuracy real-time clock is not required, the system may
use the on-chip 40 kHz oscillator. The tolerance is ± 50%.
My question is related to 24MHz clock source setting in the register of PMU_LOWPWR_CTRLn (0x020C8270), Bit No. 0 (RC_OSC_EN).
Is this bit for 32KOSC clock source? And the comment on DRM is a typo?