Freescale Semiconductor /MK80F25615 /SDHC /SYSCTL

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 SYSCTL

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 (0)IPGEN 0 (0)HCKEN 0 (0)PEREN 0 (SDCLKEN)SDCLKEN 0 (0)DVS0SDCLKFS0 (0000)DTOCV0 (0)RSTA 0 (0)RSTC 0 (0)RSTD 0 (INITA)INITA

RSTA=0, RSTD=0, DVS=0, PEREN=0, HCKEN=0, IPGEN=0, DTOCV=0000, RSTC=0

Description

System Control register

Fields

IPGEN

IPG Clock Enable

0 (0): Bus clock will be internally gated off.

1 (1): Bus clock will not be automatically gated off.

HCKEN

System Clock Enable

0 (0): System clock will be internally gated off.

1 (1): System clock will not be automatically gated off.

PEREN

Peripheral Clock Enable

0 (0): SDHC clock will be internally gated off.

1 (1): SDHC clock will not be automatically gated off.

SDCLKEN

SD Clock Enable

DVS

Divisor

0 (0): Divisor by 1.

1 (1): Divisor by 2.

14 (1110): Divisor by 15.

15 (1111): Divisor by 16.

SDCLKFS

SDCLK Frequency Select

1 (1): Base clock divided by 2.

2 (10): Base clock divided by 4.

4 (100): Base clock divided by 8.

8 (1000): Base clock divided by 16.

16 (10000): Base clock divided by 32.

32 (100000): Base clock divided by 64.

64 (1000000): Base clock divided by 128.

128 (10000000): Base clock divided by 256.

DTOCV

Data Timeout Counter Value

0 (0000): SDCLK x 2 13

1 (0001): SDCLK x 2 14

14 (1110): SDCLK x 2 27

RSTA

Software Reset For ALL

0 (0): No reset.

1 (1): Reset.

RSTC

Software Reset For CMD Line

0 (0): No reset.

1 (1): Reset.

RSTD

Software Reset For DAT Line

0 (0): No reset.

1 (1): Reset.

INITA

Initialization Active

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