HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 611

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

598
Serial
data
TDFE
TEND
Multiprocessor Serial Data Reception
Figure 14.14 shows a sample flowchart for multiprocessor serial reception.
Use the following procedure for multiprocessor serial data reception after enabling the SCIF
for reception.
(Example with 8-Bit Data, Multiprocessor Bit, One Stop Bit, LSB-First Transfer)
TXI interrupt
request
1
Start
bit
0
Data written to SCFTDR
and TDFE flag cleared
to 0 by TXI interrupt handler
Figure 14.13 Example of SCIF Transmit Operation
D0
D1
One frame
Data
D7
Multi-
proces-
sor bit
0/1
TXI interrupt
request
Stop
bit
1
Start
bit
0
D0
D1
D7
Multi-
proces-
sor bit
0/1
Stop
bit
1
Idle state
(mark state)
1