HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 433

• Manufacturer Part Number: HD64F7050
• Description: 32-Bit RISC Microcomputer SuperH RISC engine Family/
• Manufacturer: RENESAS [Renesas Technology Corp]

Figures 13.14 and 13.15 show examples of SCI receive operation using a multiprocessor format.
RDRF
Serial
RxI interrupt request
MPIE
value
interrupt), MPIE = 0
MPB
RDR
data
(multiprocessor
1
Start
bit
0
Figure 13.14 SCI Receive Operation (ID Does Not Match)
D0 D1
(ID1)
Data
and clears RDRF to 0
RxI interrupt handler
reads data in RDR
D7
MPB
1
Stop
bit
1
Section 13 Serial Communication Interface (SCI)
Start
bit
0
(data 1)
Rev. 5.00 Jan 06, 2006 page 413 of 818
D0
Data
ID, so MPIE is
set to 1 again
Not station’s
D1
D7
ID1
MPB
0
No RxI interrupt,
RDR maintains
REJ09B0273-0500
Stop
bit
1
(marking)
state
Idling
1