R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 831
R8A77800ANBGAV
Manufacturer Part Number
R8A77800ANBGAV
Description
IC SUPERH MPU ROMLESS 449-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77800ANBGV.pdf
(1342 pages)
Specifications of R8A77800ANBGAV
Core Processor
SH-4A
Core Size
32-Bit
Speed
400MHz
Connectivity
Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
Peripherals
DMA, POR, WDT
Number Of I /o
75
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
449-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77800ANBGAV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Figure 21.12 shows a sample flowchart for serial reception.
Use the following procedure for serial data reception after enabling the SCIF for reception.
Serial Data Reception (Asynchronous Mode)
No
No
Figure 21.12 Sample Serial Reception Flowchart (1)
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?
No
Yes
Yes
Section 21 Serial Communication Interface with FIFO (SCIF)
Error handling
[1]
[2]
[3]
Yes
[1] Receive error handling and
[2] SCIF status check and receive
[3] Serial reception continuation
Rev.1.00 Dec. 13, 2005 Page 779 of 1286
break detection:
Read the DR, ER, and BRK
flags 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 the
case of a framing error, a
break can also be detected by
reading the value of the
SCIF_RXD pin.
data read:
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.
procedure:
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
SCRFDR.
REJ09B0158-0100
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