R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1234

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 28 Serial Communication Interface with FIFO/IrDA Interface (SCIF/IrDA)
(5)
Figures 28.9 and 28.10 shows a sample flowcharts for serial reception.
Use the following procedure for serial data reception after enabling the SCIF for reception.
Rev. 2.00 May 22, 2009 Page 1164 of 1982
REJ09B0256-0200
Serial Data Reception (Asynchronous Mode)
No
No
ER, DR, BRK or ORER = 1?
Read ER, DR, BRK flags in
Clear RE bit in SCSCR to 0
Read RDF flag in SCFSR
SCFRDR, and clear RDF
Read receive data in
SCFSR and ORER
flag in SCFSR to 0
All data received?
Start of reception
End of reception
flag in SCLSR
RDF = 1?
Figure 28.9 Sample Serial Reception Flowchart (1)
No
Yes
Yes
Error handling
[1]
[2]
[3]
Yes
[1] Receive error handling and break detection:
[2] SCIF status check and receive data read:
[3] Serial reception continuation procedure:
Read the DR, ER, and BRKflags in SCFSR, and the
ORER flag in SCLSR, to identify any error, perform the
appropriate error handling, then clear the DR, ER, BRK,
and ORER flags to 0. In thecase of a framing error, a
break can also be detected by reading the value of the
SCIF_RXD pin.
Read SCFSR and check that RDF = 1, then read the
receive data in SCFRDR, read 1 from the RDF flag,
and then clear the RDF flag to 0. The transition of the
RDF flag from 0 to 1 can also be identified by an RXI
interrupt.
To continue serial reception, read at least the receive
trigger set number of receive data bytes from SCFRDR,
read 1 from the RDF flag, then clear the RDF flag to 0.
The number of receive data bytes in SCFRDR can be
ascertained by reading from SCFDR.