SPRUJ55D September 2023 – July 2025 AM263P2 , AM263P2-Q1 , AM263P4 , AM263P4-Q1
(FREQ = 50MHz)
Program MMCSD GCD register with the value of 0x333 in-order to switch to a new desired frequency, MSS_RCM.MMCx_CLK_DIV_VAL.CLKDIV = 0x333
Poll for the CURRDIVR field of corresponding status register to reflect its new frequency change, MSS_RCM.MMCx_CLK_STATUS.CURRDIVIDER = 0x03
Update the MMCx GCM register with the value of 0x222 to select SYSCLK as its source, MSS_RCM.MMCx_CLK_SRC_SEL.CLKSRCSEL = 0x222
Poll for the CLKINUSE field of corresponding status register to reflect its new frequency change, MSS_RCM.MMCx_CLK_STATUS.CLKINUSE = 0x04
(FREQ = 48MHz)
Program MMCSD GCD register with the value of 0x333 in-order to switch to a new desired frequency, MSS_RCM.MMCx_CLK_DIV_VAL.CLKDIV = 0x333
Poll for the CURRDIVR field of corresponding status register to reflect its new frequency change, MSS_RCM.MMCx_CLK_STATUS.CURRDIVIDER = 0x03
Update the MMCx GCM register with the value of 0x333 to select PLL_PER_CLKOUT1 as its source, MSS_RCM.MMCx_CLK_SRC_SEL.CLKSRCSEL = 0x333
Poll for the CLKINUSE field of corresponding status register to reflect its new frequency change, MSS_RCM.MMCx_CLK_STATUS.CLKINUSE = 0x08