HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 762
HD6417751RF240V
Manufacturer Part Number
HD6417751RF240V
Description
MPU 1.5/3.3V 0K PB-FREE 256-QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417751RBP200DV.pdf
(1226 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417751RF240V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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15. Serial Communication Interface (SCI)
In serial reception, the SCI operates as described below.
1. The SCI performs internal initialization in synchronization with serial clock input or output.
2. The received data is stored in SCRSR1 in LSB-to-MSB order.
3. If the RIE bit in SCRSR1 is set to 1 when the RDRF flag changes to 1, a receive-data-full
Figure 15.23 shows an example of SCI operation in reception.
Rev.4.00 Oct. 10, 2008 Page 662 of 1122
REJ09B0370-0400
After reception, the SCI checks whether the RDRF flag is 0, indicating that the receive data
can be transferred from SCRSR1 to SCRDR1.
If this check is passed, the RDRF flag is set to 1, and the receive data is stored in SCRDR1. If
a receive error is detected in the error check, the operation is as shown in table 15.11.
Neither transmit nor receive operations can be performed subsequently when a receive error
has been found in the error check.
Also, as the RDRF flag is not set to 1 when receiving, the flag must be cleared to 0.
interrupt (RXI) request is generated. If the RIE bit in SCRSR1 is set to 1 when the ORER flag
changes to 1, a receive-error interrupt (ERI) request is generated.
Figure 15.22 Sample Serial Reception Flowchart (2)
No
Clear ORER flag in SCSSR1 to 0
Overrun error handling
Error handling
ORER = 1?
End
Yes
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