HD64F38602R Datasheet, PDF (308/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 14 Serial Communication Interface 3 (SCI3, IrDA)
RDR
RDR
RXD3 pin
RSR (reception in progress)
RXD3 pin
↑
RSR (reception completed, transfer)
RDRF = 0
RDRF 1
(RXI3 request when RIE = 1)
Figure 14.17 (a) RDRF Setting and RXI Interrupt
TXD3 pin
TDR (next transmit data)
TDR
TSR (transmission in progress)
TXD3 pin
↓
TSR (transmission completed, transfer)
TDRE = 0
TDRE 1
(TXI3 request when TIE = 1)
Figure 14.17 (b) TDRE Setting and TXI Interrupt
TDR
TDR
TXD3 pin
TSR (transmission in progress)
TXD3 pin
TSR (transmission completed)
TEND = 0
TEND 1
(TEI3 request when TEIE = 1)
Figure 14.17 (c) TEND Setting and TEI Interrupt
Rev. 3.00 May 15, 2007 Page 276 of 516
REJ09B0152-0300