CMS32L051 User Manual |Chapter 12 Universal Serial Communication Unit
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(4) Process flow (continuous send mode)
Figure 12 12-102 UART transmission (continuous send mode)
Note If the BFFmn bit of the serial status register mn (SSRmn) is 1 (when valid data is saved in the serial data
register mn (SDRmn)) is given The SDRmn register writes the transmitted data and overrides the transmitted
data.
Notice The MDmn0 bit of the serial mode register mn (SMRmn) can be overridden even during operation. However, in
order to catch up with the end of the transmission interruption of the last transmitted data, it must be overwritten
before the last bit of transmission begins.
Remark m: Unit number (m=0, 1) n: Channel number (n=0, 2) q: UART numbers (q=0~2) mn=00, 02, 10