R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 1187
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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27.6
Note the following when using the SCIF.
(1)
The TDFE flag in SCFSR is set when the number of transmit data bytes written in SCFTDR has
fallen to or below the transmit trigger number set by bits TTRG1 and TTRG0 in SCFCR. After
TDFE is set, transmit data up to the number of empty bytes in SCFTDR can be written, allowing
efficient continuous transmission.
However, if the number of data bytes written in SCFTDR is equal to or less than the transmit
trigger number, the TDFE flag will be set to 1 again, even after being read as 1 and cleared to 0.
TDFE clearing should therefore be carried out when SCFTDR contains more than the transmit
trigger number of transmit data bytes.
The number of transmit data bytes in SCFTDR can be found from SCTFDR.
(2)
The RDF flag in SCFSR is set when the number of receive data bytes in SCFRDR has become
equal to or greater than the receive trigger number set by bits RTRG1 and RTRG0 in SCFCR.
After RDF is set, receive data equivalent to the trigger number can be read from SCFRDR,
allowing efficient continuous reception.
However, if the number of data bytes read in SCFRDR is equal to or greater than the trigger
number, the RDF flag will be set to 1 again even if it is cleared to 0. After the receive data is
read, clear the RDF flag readout to 0 in order to reduce the number of data bytes in SCFRDR to
less than the trigger number.
The number of receive data bytes in SCFRDR can be found from SCRFDR.
(3)
If a framing error (FER) is detected, break signals can also be detected by reading the SCIF_RXD
pin value directly. In the break state the input from the SCIF_RXD pin consists of all 0s, so the
FER flag is set and the parity error flag (PER) may also be set.
Although the SCIF stops transferring receive data to SCFRDR after receiving a break, the receive
operation continues.
SCFTDR Writing and the TDFE Flag
SCFRDR Reading and the RDF Flag
Break Detection and Processing
Usage Notes
Section 27 Serial Communication Interface with FIFO (SCIF)
Rev. 2.00 May 22, 2009 Page 1117 of 1982
REJ09B0256-0200
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