DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 515

• 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: -

In receiving, the SCI operates as follows.
1. The SCI synchronizes with serial clock input or output and initializes internally.
2. Receive data is stored in RSR in order from LSB to MSB.
3. After setting the RDRF flag to 1, if the RIE bit is set to 1 in SCR, the SCI requests a
Figure 13.19 shows an example of SCI receive operation.
After receiving the data, the SCI checks that the RDRF flag is 0 so that receive data can be
transferred from RSR to RDR. If this check passes, the RDRF flag is set to 1 and the
received data is stored in RDR. If the check does not pass (receive error), the SCI operates
as indicated in table 13.11.
When a receive error has been identified in the error check, subsequent transmit and
receive operations are disabled.
receive-data-full interrupt (RXI). If the ORER flag is set to 1 and the RIE bit in SCR is also
set to 1, the SCI requests a receive-error interrupt (ERI).
Figure 13.18 Sample Flowchart for Serial Receiving (2)
Clear ORER flag to 0 in SSR
Overrun error handling
Error handling
End
3
Section 13 Serial Communication Interface
Rev. 3.00 Mar 21, 2006 page 485 of 814
REJ09B0302-0300