D12320VF25IV Datasheet, PDF (672/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 14 Serial Communication Interface (SCI)
Clock
See section 14.3.2, Operation in 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 14.9 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 14.10 shows a sample flowchart for
multiprocessor serial data transmission.
The following procedure should be used for multiprocessor serial data transmission.
Rev.6.00 Sep. 27, 2007 Page 640 of 1268
REJ09B0220-0600