SH7011 Datasheet, PDF (210/292 Pages) Renesas Technology Corp – CMOS single-chip microprocessors

• Bit 2—Transmit End (TEND): Indicates that when the last bit of a serial character was
transmitted, the TDR did not contain valid data, so transmission has ended. TEND is a read-
only bit and cannot be written.
Bit 2: TEND
0
1
Description
Transmission is in progress
TEND is cleared to 0 when software reads TDRE after it has been set to 1, then
writes 0 in TDRE
End of transmission (initial value)
TEND is set to 1 when the chip is power-on reset, TE is cleared to 0 in the serial
control register (SCR), or TDRE is 1 when the last bit of a one-byte serial
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. The MPB is a read-only bit and cannot
be written.
Bit 1: MPB
0
1
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.
Bit 0: MPBT
0
1
Description
Multiprocessor bit value in transmit data is 0 (initial value)
Multiprocessor bit value in transmit data is 1
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