HD64F3029XBL25V Renesas Electronics America, HD64F3029XBL25V Datasheet - Page 530

• Manufacturer Part Number: HD64F3029XBL25V
• Description: MCU 5V 512K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3029XBL25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 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: -

Figure 13.13 shows an example of SCI receive operation using a multiprocessor format.
13.3.4
In synchronous mode, the SCI transmits and receives data in synchronization with clock pulses.
This mode is suitable for high-speed serial communication.
The SCI transmitter and receiver share the same clock but are otherwise independent, so full-
duplex communication is possible. The transmitter and the receiver are also double-buffered, so
continuous transmitting or receiving is possible by reading or writing data while transmitting or
receiving is in progress.
MPIE
RDRF
RDR value
MPIE
RDRF
RDR value
1
1
Synchronous Operation
Start
bit
MPB detection
MPIE = 0
Start
bit
0
MPB detection
MPIE = 0
0
D0
D0
ID1
(8-Bit Data with Multiprocessor Bit and One Stop Bit)
Data (ID2)
Data (ID1)
Figure 13.13 Example of SCI Receive Operation
D1
D1
RXI interrupt
request
(multiprocessor
interrupt)
RXI interrupt
request
(multiprocessor
interrupt)
D7
a. Own ID does not match data
b. Own ID matches data
D7
MPB
MPB
1
1
RXI interrupt handler reads
RDR data and clears
RDRF flag to 0
RXI interrupt handler
reads RDR data and
clears RDRF flag to 0
Stop
bit
Stop
bit
1
1
Start
bit
Start
bit
0
0
D0
Data (data1)
Data (data1)
D0
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
Rev. 2.0, 06/04, page 501 of 980
ID2
ID1
D7
D7
MPB
MPB
0
0
1
Stop
bit
Stop
bit
1
MPIE bit is set to
1 again
Idle (mark)
state
Idle (mark)
state
No RXI interrupt
request, RDR not
updated
Data2
1
1