Freescale Semiconductor /MKV56F22 /SIM /SOPT2

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as SOPT2

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (000)CLKOUTSEL 0 (00)FBSL 0 (0)TRACECLKSEL 0 (00)PLLFLLSEL 0 (0)RMIISRC 0 (00)TIMESRC

PLLFLLSEL=00, FBSL=00, RMIISRC=0, CLKOUTSEL=000, TIMESRC=00, TRACECLKSEL=0

Description

System Options Register 2

Fields

CLKOUTSEL

CLKOUT select

0 (000): FlexBus CLKOUT

2 (010): Flash clock

3 (011): LPO clock (1 kHz)

4 (100): MCGIRCLK

5 (101): OSCERCLK_UNDIV

6 (110): OSCERCLK

FBSL

FlexBus security level

0 (00): All off-chip accesses (instruction and data) via the FlexBus are disallowed.

1 (01): All off-chip accesses (instruction and data) via the FlexBus are disallowed.

2 (10): Off-chip instruction accesses are disallowed. Data accesses are allowed.

3 (11): Off-chip instruction accesses and data accesses are allowed.

TRACECLKSEL

Debug trace clock select

0 (0): MCGOUTCLK

1 (1): Core/system clock

PLLFLLSEL

PLL/FLL clock select

0 (00): MCGFLLCLK clock

1 (01): MCGPLLCLK clock

RMIISRC

RMII clock source select

0 (0): EXTAL clock

1 (1): External bypass clock (ENET_1588_CLKIN).

TIMESRC

IEEE 1588 timestamp clock source select

0 (00): Core/system clock

1 (01): MCGFLLCLK , or MCGPLLCLK as selected by SOPT2[PLLFLLSEL].

2 (10): OSCERCLK clock

3 (11): External bypass clock (ENET_1588_CLKIN)

Links

() ()