beautypg.com

Figure 21.20 example of scif reception operation – Renesas SH7781 User Manual

Page 1122

background image

21. Serial Communication Interface with FIFO (SCIF)

Rev.1.00 Jan. 10, 2008 Page 1092 of 1658
REJ09B0261-0100

Bit 7

Bit 0

Bit 7

Bit 0

Bit 1

Bit 6

Bit 7

RXI interrupt
request

One frame

Data read from
SCFRDR and RDF flag
cleared to 0 by RXI
interrupt handler

LSB

RDF

Serial data
SCIF_RXD

Synchronization
clock

ORER

MSB

RXI interrupt
request

BRI interrupt request
by overrun error

Figure 21.20 Example of SCIF Reception Operation