DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 471
![MCU RISC FLASH 32K 8K 64LQFP](/photos/28/61/286100/64-lqfp__plqp0064kb-a_sml.jpg)
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 471 of 794
- Download datasheet (5Mb)
In serial transmission, the SCI operates as described below.
1. The SCI monitors the TDRE flag in the serial status register (SCSSR). If it is cleared to 0, the
2. After transferring data from SCTDR to SCTSR, the SCI sets the TDRE flag to 1 and starts
3. The SCI checks the TDRE flag at the timing for sending the stop bit.
SCI recognizes that data has been written to the transmit data register (SCTDR) and transfers
the data from SCTDR to the transmit shift register (SCTSR).
transmission. If the TIE bit in the serial control register (SCSCR) is set to 1 at this time, a
transmit-data-empty interrupt (TXI) request is generated.
The serial transmit data is sent from the TXD pin in the following order.
A. Start bit: One-bit 0 is output.
B. Transmit data: 8-bit or 7-bit data is output in LSB-first order.
C. Parity bit or multiprocessor bit: One parity bit (even or odd parity) or one multiprocessor
D. Stop bit(s): One or two 1 bits (stop bits) are output.
E. Mark state: 1 is output continuously until the start bit that starts the next transmission is
If the TDRE flag is 0, the data is transferred from SCTDR to SCTSR, the stop bit is sent, and
then serial transmission of the next frame is started.
If the TDRE flag is 1, the TEND flag in SCSSR is set to 1, the stop bit is sent, and then the
"mark state" is entered in which 1 is output. If the TEIE bit in SCSCR is set to 1 at this time, a
TEI interrupt request is generated.
bit is output. (A format in which neither parity nor multiprocessor bit is output can also be
selected.)
sent.
Rev. 5.00 Mar. 06, 2009 Page 451 of 770
REJ09B0243-0500
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