SH7052 datasheet(481/919 Pages) RENESAS

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• Bit 2—Transmit End (TEND): Indicates that when the last bit of a serial character was

transmitted, TDR did not contain valid data, so transmission has ended. TEND is a read-only

bit and cannot be written.

Bit 2: TEND

Description

Transmission is in progress

[Clearing conditions]

• When 0 is written to TDRE after reading TDRE = 1

• When the DMAC writes data in TDR

End of transmission

(Initial value)

[Setting conditions]

• Power-on reset, hardware standby mode, or software standby mode

• When the TE bit in SCR is 0

• If TDRE = 1 when the last bit of a one-byte serial transmit character is

transmitted

• Bit 1—Multiprocessor Bit (MPB): Stores the value of the multiprocessor bit in receive data

when a multiprocessor format is selected for receiving in asynchronous mode. MPB is a read-

only bit and cannot be written.

Bit 1: MPB

Description

Multiprocessor bit value in receive data is 0

(Initial value)

If RE is cleared to 0 when a multiprocessor format is selected, the MPB retains

its previous value.

Multiprocessor bit value in receive data is 1

• Bit 0—Multiprocessor Bit Transfer (MPBT): Stores the value of the multiprocessor bit added

to transmit data when a multiprocessor format is selected for transmitting in asynchronous

mode. The MPBT setting is ignored in synchronous mode, when a multiprocessor format is not

selected, or when the SCI is not transmitting.

Bit 0: MPBT

Description

Multiprocessor bit value in transmit data is 0

(Initial value)

Multiprocessor bit value in transmit data is 1

SH7052 데이터시트(PDF) 481 Page - Renesas Technology Corp