D12320VF25V Datasheet, PDF (508/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 12 Serial Communication Interface (SCI)
Clock
See the section on asynchronous mode.
Transmitting
station
Serial communication line
Receiving
station A
(ID = 01)
Receiving
station B
(ID = 02)
Receiving
station C
(ID = 03)
Receiving
station D
(ID = 04)
Serial
data
H'01
(MPB= 1)
H'AA
(MPB= 0)
ID transmission cycle =
receiving station
specification
Data transmission cycle =
Data transmission to
receiving station specified by ID
Legend:
MPB: Multiprocessor bit
Figure 12.9 Example of Inter-Processor Communication Using Multiprocessor Format
(Transmission of Data H'AA to Receiving Station A)
Data Transfer Operations
Multiprocessor serial data transmission: Figure 12.10 shows a sample flowchart for
multiprocessor serial data transmission.
The following procedure should be used for multiprocessor serial data transmission.
Rev.7.00 Feb. 14, 2007 page 474 of 1108
REJ09B0089-0700