DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 483

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 12.13 shows an example of SCI receive operation.
Transmitting and Receiving Serial Data Simultaneously (Clock Synchronous Mode): Figure
12.14 shows a sample flowchart for transmitting and receiving serial data simultaneously.
Use the following procedure for serial data transmission and reception after enabling the SCI for
transmission and reception.
Synchronization
Serial data
ORER
RDRF
clock
Transfer direction
RXI interrupt
request
Figure 12.13 Example of SCI Receive Operation
Bit 7
Data read from SCRDR and
RDRF flag cleared to 0 by RXI
interrupt handler
Bit 0
One frame
Bit 7
RXI interrupt
request
Bit 0
Rev. 5.00 Mar. 06, 2009 Page 463 of 770
Bit 1
ERI interrupt request
by overrun error
REJ09B0243-0500
Bit 6
Bit 7