CMTUARTPAD=0, NFCSRC=00, USBF_CLKSEL=0, NFC_CLKSEL=0, TRACECLKSEL=0, FBSL=00, TIMESRC=00, USBFSRC=00, CLKOUTSEL=000, RTCCLKOUTSEL=0, ESDHCSRC=00, USBHSRC=00, PLLFLLSEL=00
System Options Register 2
| USBHSRC | USB HS clock source select 0 (00): Bus clock 1 (01): MCGPLL0CLK 2 (10): MCGPLL1CLK 3 (11): OSC0ERCLK |
| RTCCLKOUTSEL | RTC clock out select 0 (0): RTC 1 Hz clock drives RTC CLKOUT. 1 (1): RTC 32 kHz oscillator drives RTC CLKOUT. |
| CLKOUTSEL | Clock out select 0 (000): FlexBus clock (reset value) 2 (010): Flash ungated clock 3 (011): LPO clock (1 kHz) 4 (100): MCGIRCLK 5 (101): RTC 32 kHz clock 6 (110): OSC0ERCLK 7 (111): OSC1ERCLK |
| FBSL | Flexbus security level 0 (00): All off-chip accesses (op code and data) via the FlexBus are disallowed. 2 (10): Off-chip op code accesses are disallowed. Data accesses are allowed. 3 (11): Off-chip op code accesses and data accesses are allowed. |
| CMTUARTPAD | CMT/UART pad drive strength 0 (0): Single-pad drive strength for CMT IRO or UART0_TXD. 1 (1): Dual-pad drive strength for CMT IRO or UART0_TXD. |
| TRACECLKSEL | Debug trace clock select 0 (0): MCGCLKOUT 1 (1): Core/system clock |
| NFC_CLKSEL | NFC Flash clock select 0 (0): Clock divider NFC clock 1 (1): EXTAL1 clock. |
| PLLFLLSEL | PLL/FLL clock select 0 (00): MCGFLLCLK 1 (01): MCGPLL0CLK 2 (10): MCGPLL1CLK 3 (11): System Platform clock |
| USBF_CLKSEL | USB FS clock select 0 (0): External bypass clock (PTE26) 1 (1): Clock divider USB FS clock |
| TIMESRC | Ethernet timestamp clock source select 0 (00): System platform clock 1 (01): MCGPLLCLK/MCGFLLCLK selected by PLLFLLSEL[1:0] 2 (10): OSC0ERCLK 3 (11): External bypass clock (PTE26) |
| USBFSRC | USB FS clock source select 0 (00): MCGPLLCLK/MCGFLLCLK selected by PLLFLLSEL[1:0] 1 (01): MCGPLL0CLK 2 (10): MCGPLL1CLK 3 (11): OSC0ERCLK |
| ESDHCSRC | ESDHC perclk source select 0 (00): Core/system clock 1 (01): MCGPLLCLK/MCGFLLCLK selected by PLLFLLSEL[1:0] 2 (10): OSC0ERCLK 3 (11): External bypass clock (PTD11) |
| NFCSRC | NFC Flash clock source select 0 (00): Bus clock 1 (01): MCGPLL0CLK 2 (10): MCGPLL1CLK 3 (11): OSC0ERCLK |