Freescale Semiconductor /MK20D10 /SPI1 /CTAR1

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 CTAR1

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 0BR0DT0ASC0CSSCK0 (00)PBR0 (00)PDT0 (00)PASC 0 (00)PCSSCK 0 (0)LSBFE 0 (0)CPHA 0 (0)CPOL 0FMSZ0 (0)DBR

DBR=0, PDT=00, LSBFE=0, CPHA=0, PCSSCK=00, PBR=00, PASC=00, CPOL=0

Description

DSPI Clock and Transfer Attributes Register (In Master Mode)

Fields

BR

Baud Rate Scaler

DT

Delay After Transfer Scaler

ASC

After SCK Delay Scaler

CSSCK

PCS to SCK Delay Scaler

PBR

Baud Rate Prescaler

0 (00): Baud Rate Prescaler value is 2.

1 (01): Baud Rate Prescaler value is 3.

2 (10): Baud Rate Prescaler value is 5.

3 (11): Baud Rate Prescaler value is 7.

PDT

Delay after Transfer Prescaler

0 (00): Delay after Transfer Prescaler value is 1.

1 (01): Delay after Transfer Prescaler value is 3.

2 (10): Delay after Transfer Prescaler value is 5.

3 (11): Delay after Transfer Prescaler value is 7.

PASC

After SCK Delay Prescaler

0 (00): Delay after Transfer Prescaler value is 1.

1 (01): Delay after Transfer Prescaler value is 3.

2 (10): Delay after Transfer Prescaler value is 5.

3 (11): Delay after Transfer Prescaler value is 7.

PCSSCK

PCS to SCK Delay Prescaler

0 (00): PCS to SCK Prescaler value is 1.

1 (01): PCS to SCK Prescaler value is 3.

2 (10): PCS to SCK Prescaler value is 5.

3 (11): PCS to SCK Prescaler value is 7.

LSBFE

LSB First

0 (0): Data is transferred MSB first.

1 (1): Data is transferred LSB first.

CPHA

Clock Phase

0 (0): Data is captured on the leading edge of SCK and changed on the following edge.

1 (1): Data is changed on the leading edge of SCK and captured on the following edge.

CPOL

Clock Polarity

0 (0): The inactive state value of SCK is low.

1 (1): The inactive state value of SCK is high.

FMSZ

Frame Size

DBR

Double Baud Rate

0 (0): The baud rate is computed normally with a 50/50 duty cycle.

1 (1): The baud rate is doubled with the duty cycle depending on the Baud Rate Prescaler.

Links

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