HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 760

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

15. Serial Communication Interface (SCI)
Serial Data Reception (Synchronous Mode): Figure 15.22 shows a sample flowchart for serial
reception.
Use the following procedure for serial data reception after enabling the SCI for reception.
When changing the operating mode from asynchronous to synchronous, be sure to check that the
ORER, PER, and FER flags are all cleared to 0. The RDRF flag will not be set if the FER or PER
flag is set to 1, and neither transmit nor receive operations will be possible.
Rev.4.00 Oct. 10, 2008 Page 660 of 1122
REJ09B0370-0400
Serial clock
Serial data
TDRE
TEND
TXI interrupt
request
Transfer
direction
Data written to SCTDR1
and TDRE flag cleared to
0 in TXI interrupt handler
Figure 15.21 Example of SCI Transmit Operation
Bit 0
LSB
Bit 1
One frame
TXI interrupt
request
MSB
Bit 7
Bit 0
Bit 1
Bit 6
TEI interrupt
request
Bit 7