Toshiba TX03 Series Manual page 280

12. Serial Channel with 4bytes FIFO (SIO/UART)
12.14 Operation in Each Mode
Transmit data
write timing
SCLKx input
(SCxCR<SCLKS>=0
Rising edge mode)
SCLKx input
(SCxCR<SCLKS>=1
Falling edge mode)
TXDx
INTTXx interrupt request
Transmit data
write timing
SCLKx input
(SCxCR<SCLKS>=0
Rising edge mode)
SCLKx input
(SCxCR<SCLKS>=1
Falling edge mode)
TXDx
INTTXx interrupt request
SCxMOD2<TBEMP>
Transmit data
write timing
SCLKx input
(SCxCR<SCLKS>=0
Rising edge mode)
SCLKx input
(SCxCR<SCLKS>=1
Falling edge mode)
TXDx
INTTXx interrupt request
SCxMOD2<TBEMP>
SCxCR<PERR>
(Functions to detect
under-run errors)
Figure 12-16 Transmit Operation in the I/O Interface Mode (Clock Input Mode)
2019-02-06
bit 0 bit 1
<WBUF> = "0" (if double buffering is disabled) (SCxCR<TIDLE>="10")
bit 0 bit 1
<WBUF> = "1" (if double buffering is enabled and there is data in buffer2) (SCxCR<TIDLE>="00")
bit 0 bit 1
<WBUF> = "1" (if double buffering is enabled and there is no data in buffer2) (SCxCR<TXDEMP><TIDLE>="100")
bit 5 bit 6 bit 7
bit 5 bit 7
bit 6
bit 5 bit 7
bit 6
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TMPM3V6/M3V4
A
bit 0
bit 1
A
bit 0 bit 1
A