HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 304

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 12.11 shows an example of an SCI receive operation using a multiprocessor format (8-bit
data with multiprocessor bit and one stop bit).
272
MPIE
RDRF
RDR value
MPIE
RDRF
RDR value
1
1
MPB detection
MPIE = 0
MPB detection
MPIE = 0
Start
bit
Start
bit
0
0
(8-Bit Data with Multiprocessor Bit and One Stop Bit)
Figure 12.11 Example of SCI Receive Operation
D0
D0
Data (ID1)
Data (ID2)
(Multiprocessor interrupt)
(Multiprocessor interrupt)
D1
D1
RXI request
RXI request
(a) Own ID does not match data
(b) Own ID matches data
D7
D7
MPB
MPB
1
1
RXI handler reads
RDR data and clears
RDRF to 0
RXI handler reads
RDR data and clears
RDRF to 0
Stop
bit
Stop
bit
1
1
Start
bit
Start
bit
0
0
D0
D0
Data (Data1)
Data (Data2)
D1
D1
Own ID, so receiving
continues, with data
received at each RXI
Not own ID, so
MPIE is set to
1 again
ID1
ID2
D7
D7
MPB
MPB
0
0
Stop
bit
Stop
bit
No RXI request,
RDR not updated
1
1
MPIE set to
1 again
Data 2
Idle state
(mark)
Idle state
(mark)
1
1