R5F21274SDFP#U0 Renesas Electronics America, R5F21274SDFP#U0 Datasheet - Page 191

IC R8C/27 MCU FLASH 32LQFP

R5F21274SDFP#U0

Manufacturer Part Number
R5F21274SDFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet

Specifications of R5F21274SDFP#U0

Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
14.2.3.1
In programmable one-shot generation mode and programmable wait one-shot generation mode, operation starts
when a one-shot trigger is generated while the TCSTF bit in the TRBCR register is set to 1 (count starts).
A one-shot trigger can be generated by either of the following causes:
When a one-shot trigger occurs, the TOSSTF bit in the TRBOCR register is set to 1 (one-shot operation in
progress) after one or two cycles of the count source have elapsed. Then, in programmable one-shot generation
mode, count operation begins and one-shot waveform output starts. (In programmable wait one-shot generation
mode, count operation starts for the wait period.) If a one-shot trigger occurs while the TOSSTF bit is set to 1,
no retriggering occurs.
To use trigger input from the INT0 pin, input the trigger after making the following settings:
Note the following points with regard to generating interrupt requests by trigger input from the INT0 pin.
• 1 is written to the TOSST bit in the TRBOCR register by a program.
• Trigger input from the INT0 pin.
• Set the PD4_5 bit in the PD4 register to 0 (input port).
• Select the INT0 digital filter with bits INT0F1 and INT0F0 in the INTF register.
• Select both edges or one edge with the INT0PL bit in INTEN register. If one edge is selected, further select
• Set the INT0EN bit in the INTEN register to 0 (enabled).
• After completing the above, set the INOSTG bit in the TRBIOC register to 1 (INT pin one-shot trigger
• Processing to handle the interrupts is required. Refer to 12. Interrupts, for details.
• If one edge is selected, use the POL bit in the INT0IC register to select falling or rising edge. (The
• If a one-shot trigger occurs while the TOSSTF bit is set to 1, timer RB operation is not affected, but the
Sep 26, 2008
falling or rising edge with the INOSEG bit in TRBIOC register.
enabled).
INOSEG bit in the TRBIOC register does not affect INT0 interrupts).
value of the IR bit in the INT0IC register changes.
One-Shot Trigger Selection
Page 172 of 453
14. Timers

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