HD64F38024HV Datasheet, PDF (383/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

RDR
Section 10 Serial Communication Interface
RDR
RXD₃₂ pin
RSR (reception in progress)
RDRF = 0
RXD₃₂ pin
RSR↑ (reception completed, transfer)
RDRF ← 1
(RXI request when RIE = 1)
Figure 10.2(a) RDRF Setting and RXI Interrupt
TXD₃₂ pin
TDR (next transmit data)
TDR
TSR (transmission in progress)
TDRE = 0
TXD₃₂ pin
↓
TSR (transmission completed, transfer)
TDRE ← 1
(TXI request when TIE = 1)
Figure 10.2(b) TDRE Setting and TXI Interrupt
TDR
TDR
TXD₃₂ pin
TSR (transmission in progress)
TEND = 0
TXD₃₂ pin
TSR (reception completed)
TEND ← 1
(TEI request when TEIE = 1)
Figure 10.2(c) TEND Setting and TEI Interrupt
Rev. 8.00 Mar. 09, 2010 Page 361 of 658
REJ09B0042-0800