DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 482
DF71251AD50FPV
Manufacturer Part Number
DF71251AD50FPV
Description
MCU RISC FLASH 32K 8K 64LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH Tinyr
Datasheet
1.DF71243N50FPV.pdf
(794 pages)
Specifications of DF71251AD50FPV
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
SCI
Peripherals
POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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In receiving, the SCI operates as follows:
1. The SCI synchronizes with serial clock input or output and initializes internally.
2. Receive data is shifted into SCRSR in order from the LSB to the MSB. After receiving the
3. After setting RDRF to 1, if the receive-data-full interrupt enable bit (RIE) is set to 1 in
Rev. 5.00 Mar. 06, 2009 Page 462 of 770
REJ09B0243-0500
data, the SCI checks whether the RDRF flag is 0 and the receive data can be transferred from
SCRSR to SCRDR. If this check is passed, the SCI sets the RDRF flag to 1 and stores the
received data in SCRDR. If a receive error is detected, the SCI operates as shown in table
12.16. In this state, subsequent reception cannot be continued. In addition, the RDRF flag will
not be set to 1 after reception; be sure to clear the RDRF flag to 0.
SCSCR, the SCI requests a receive-data-full interrupt (RXI). If the ORER bit is set to 1 and the
RIE bit in SCSCR is also set to 1, the SCI requests a receive error interrupt (ERI).
Figure 12.12 Sample Flowchart for Receiving Serial Data (2)
No
Clear ORER flag in SCSSR to 0
Overrun error handling
Error handling
ORER = 1?
End
Yes
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