Renesas Electronics /R7FA6M1AD /SCI0 /SCMR

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Interpret as SCMR

7 43 0 0 00 0 0 0 0 0 0 0 0 (0)SMIF 0Reserved 0 (0)SINV 0 (0)SDIR 0 (0)CHR1 0Reserved 0 (0)BCP2

SINV=0, CHR1=0, SDIR=0, BCP2=0, SMIF=0

Description

Smart Card Mode Register

Fields

SMIF

Smart Card Interface Mode Select

0 (0): Non-smart card interface mode(Asynchronous mode, clock synchronous mode, simple SPI mode, or simple I2C mode)

1 (1): Smart card interface mode

Reserved

This bit is read as 1. The write value should be 1.

SINV

Transmitted/Received Data Invert Set this bit to 0 if operation is to be in simple I2C mode.

0 (0): TDR contents are transmitted as they are. Receive data is stored as it is in RDR.

1 (1): TDR contents are inverted before being transmitted. Receive data is stored in inverted form in RDR.

SDIR

Transmitted/Received Data Transfer Direction NOTE: The setting is invalid and a fixed data length of 8 bits is used in modes other than asynchronous mode. Set this bit to 1 if operation is to be in simple I2C mode.

0 (0): Transfer with LSB first

1 (1): Transfer with MSB first

CHR1

Character Length 1 (Only valid in asynchronous mode)

0 (0): Transmit/receive in 9-bit data length

1 (1): Transmit/receive in 8-bit data length(SMR.CHR=0) / in 7bit data length(SMR.CHR=1)

Reserved

These bits are read as 11. The write value should be 11.

BCP2

Base Clock Pulse 2 Selects the number of base clock cycles in combination with the SMR.BCP[1:0] bits

0 (0): S=93(SMR.BCP[1:0]=00), 128(SMR.BCP[1:0]=01), 186(SMR.BCP[1:0]=10), 512(SMR.BCP[1:0]=11)

1 (1): S=32(SMR.BCP[1:0]=00), 64(SMR.BCP[1:0]=01), 372(SMR.BCP[1:0]=10), 256(SMR.BCP[1:0]=11)

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