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Renesas SH7641 User Manual

Page 751

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Section 19 Serial Communication Interface with FIFO (SCIF)

Rev. 4.00 Sep. 14, 2005 Page 701 of 982

REJ09B0023-0400

Bit Bit

Name

Initial
value R/W Description

6 TEND

0 R/(W)* Transmit

End

Indicates that when the last bit of a serial character
was transmitted, SCFTDR did not contain valid data,
so transmission has ended.

0: Transmission is in progress

[Clearing condition]

• TEND is cleared to 0 when 0 is written after 1 is

read from TEND after transmit data is written in

SCFTDR

1: End of transmission

[Setting conditions]

• TEND is set to 1 when the chip is a power-on

reset

• TEND is set to 1 when TE is cleared to 0 in the

serial control register (SCSCR)

• TEND is set to 1 when SCFTDR does not contain

receive data when the last bit of a one-byte serial

character is transmitted

Note:

When the transmit FIFO data empty DMA
transfer request is generated and transmit
data is written to SCFTDR by the DMAC, do
not use this flag as a transmit end flag.

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