Hitachi SH7750 Hardware Manual page 720

Bit 6—Transmit End (TEND): Indicates that there is no valid data in SCFTDR2 when the last
bit of the transmit character is sent, and transmission has been ended.
Bit 6: TEND
0
1
Rev. 6.0, 07/02, page 670 of 986
Description
Transmission is in progress
[Clearing conditions]
•
When transmit data is written to SCFTDR2, and 0 is written to TEND
after reading TEND = 1
•
When data is written to SCFTDR2 by the DMAC
Transmission has been ended
[Setting conditions]
•
Power-on reset or manual reset
•
When the TE bit in SCSCR2 is 0
•
When there is no transmit data in SCFTDR2 on transmission of the last
bit of a 1-byte serial transmit character
(Initial value)