R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1242
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 28 Serial Communication Interface with FIFO/IrDA Interface (SCIF/IrDA)
(5)
Figures 28.16 and 28.17 show a sample flowchart for serial reception.
Use the following procedure for serial data reception after enabling the SCIF for reception.
When switching the operating mode from asynchronous mode to clocked synchronous mode
without initializing the SCIF, make sure that the ORER flag is cleared to 0.
Rev. 2.00 May 22, 2009 Page 1172 of 1982
REJ09B0256-0200
Serial Data Reception (Clocked Synchronous Mode)
No
No
Read ORER flag in SCLSR
Clear RE bit in SCSCR to 0
Read RDF flag in SCFSR
SCFRDR, and clear RDF
Read receive data in
flag in SCFSR to 0
All data received?
Start of reception
End of reception
Initialization
ORER = 1?
RDF = 1?
Figure 28.16 Sample Serial Reception Flowchart (1)
No
Yes
Yes
Error handling
[1]
[3]
[4]
Yes
[2]
[1] SCIF initialization:
[2] Receive error handling:
[3] SCIF status check and receive data read:
[4] Serial reception continuation procedure:
See Sample SCIF Initialization Flowchart in figure
28.13.
Read the ORER flag in SCLSR to identify any error,
perform the appropriate error handling, then clear
the ORER flag to 0.
Transmission/reception cannot be resumed while the
ORER flag is set to 1.
Read SCFSR and check that RDF = 1, then read the
receive data in SCFRDR, and 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 SCFDR.
However, as starting up the DMAC using RXI and
reading the value of SCFDR automatically clears bit
RDF, clearing bit RDF is not required.
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