![Hitachi H8/3670F-ZTAT HD64F3670 Hardware Manual Download Page 202](http://html.mh-extra.com/html/hitachi/h8-3670f-ztat-hd64f3670/h8-3670f-ztat-hd64f3670_hardware-manual_140484202.webp)
Rev. 1.0, 03/01, page 178 of 280
No
<End>
Yes
Start transmission
Read TDRE flag in SSR
[1]
Write transmit data to TDR
No
Yes
No
Yes
Read TEND flag in SSR
[2]
Clear TE bit in SCR3 to 0
TDRE = 1
All data transmitted?
TEND = 1
[1]
Read SSR and check that the TDRE flag is
set to 1, then write transmit data to TDR
and clear the TDRE flag to 0. When data is
written to TDR, the TDRE flag is
automatically cleared to 0 and clocks are
output to start the data transmission.
[2]
To continue serial transmission, be sure to
read 1 from the TDRE flag to confirm that
writing is possible, then write data to TDR.
When data is written to TDR, the TDRE flag
is automatically cleared to 0.
Figure 13-11 Sample Serial Transmission Flowchart(Clocked Synchronous Mode)
Summary of Contents for H8/3670F-ZTAT HD64F3670
Page 2: ...Rev 2 0 03 01 page ii of xxiv ...
Page 4: ...Rev 2 0 03 01 page iv of xxiv ...
Page 14: ...Rev 2 0 03 01 page xiv of xxiv ...
Page 20: ...Rev 1 0 03 01 page xx of xxiv ...
Page 24: ...Rev 1 0 03 01 page xxiv of xxiv ...
Page 78: ...Rev 1 0 03 01 page 54 of 280 ...
Page 112: ...Rev 1 0 03 01 page 88 of 280 ...
Page 248: ...Rev 1 0 03 01 page 224 of 280 ...