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| HD6473887 Datasheet, PDF (311/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer | |||
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RDR
RDR
RXD3x pin
RSR (reception in progress)
RDRF = 0
RXD3x pin
RSRâ (reception completed, transfer)
RDRF â 1
(RXI request when RIE = 1)
Figure 10-7 (a) RDRF Setting and RXI Interrupt
TDR (next transmit data)
TDR
TXD3x pin
TSR (transmission in progress)
TDRE = 0
TXD3x pin
TSRâ (transmission completed, transfer)
TDRE â 1
(TXI request when TIE = 1)
Figure 10-7 (b) TDRE Setting and TXI Interrupt
TDR
TDR
TXD3x pin
TSR (transmission in progress)
TEND = 0
TXD3x pin
TSR (reception completed)
TEND â 1
(TEI request when TEIE = 1)
Figure 10-7 (c) TEND Setting and TEI Interrupt
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