DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 509

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

MPIE
RDRF
RDR value
MPIE
RDRF
RDR value
Figure 13.13 shows an example of SCI receive operation using a multiprocessor format.
MPB detection
MPIE= 0
MPB detection
MPIE= 0
1
1
Start
bit
Start
bit
(8-Bit Data with Multiprocessor Bit and One Stop Bit)
0
0
Figure 13.13 Example of SCI Receive Operation
Data (ID1)
Data (ID2)
D0
D0
D1
D1
RXI request
(multiprocessor
interrupt)
RXI request
(multiprocessor
interrupt)
a. Own ID does not match data
D7
D7
b. Own ID matches data
MPB
MPB
1
1
RXI interrupt handler
reads RDR data and
clears RDRF flag to 0
Stop
bit
Stop
bit
RXI interrupt handler
reads RDR data and
clears RDRF flag to 0
1
1
Start
bit
Start
bit
0
0
Section 13 Serial Communication Interface
Rev. 3.00 Mar 21, 2006 page 479 of 814
Data (data1)
Data (data2)
D0
D0
ID2
D1
D1
Own ID, so receiving
continues, with data
received by RXI
interrupt handler
Not own ID, so
MPIE bit is set
to 1 again
ID1
D7
D7
MPB
MPB
0
0
REJ09B0302-0300
Stop
bit
Stop
bit
No RXI request,
RDR not updated
1
1
MPIE bit is set
to 1 again
Data 2
Idle (mark)
state
Idle (mark)
state
1
1