R5F21274JFP#U0 Renesas Electronics America, R5F21274JFP#U0 Datasheet - Page 193

• Manufacturer Part Number: R5F21274JFP#U0
• Description: MCU FLASH 2K FLASH 16K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/27r

Specifications of R5F21274JFP#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): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Table 14.10
NOTES:
Count sources
Count operations
Wait time
One-shot pulse output time (n+1)(p+1)/fi
Count start conditions
Count stop conditions
Interrupt request
generation timing
TRBO pin function
INT0 pin functions
Read from timer
Write to timer
Select functions
1. The set value is reflected at the following one-shot pulse after writing to registers TRBSC and
2. Do not set both the TRBPRE and TRBPR registers to 00h.
TRBPR.
Sep 26, 2008
Item
Specifications of Programmable Wait One-Shot Generation Mode
Page 174 of 453
f1, f2, f8, timer RA underflow
• Decrement the timer RB primary setting value.
• When a count of the timer RB primary underflows, the timer reloads the
• When a count of the timer RB secondary underflows, the timer reloads the
• When the count stops, the timer reloads the contents of the reload register
(n+1)(m+1)/fi
• The TSTART bit in the TRBCR register is set to 1 (count starts) and the
• Set the TOSST bit in the TRBOCR register to 1 (one-shot starts).
• Input trigger to the INT0 pin
• When reloading completes after timer RB underflows during secondary
• When the TOSSP bit in the TRBOCR register is set to 1 (one-shot stops).
• When the TSTART bit in the TRBCR register is set to 0 (starts counting).
• When the TSTOP bit in the TRBCR register is set to 1 (forcibly stops
In half a cycle of the count source after timer RB underflows during
secondary period (complete at the same time as waveform output from the
TRBO pin) [timer RB interrupt]
Pulse output
• When the INOSTG bit in the TRBIOC register is set to 0 (INT0 one-shot
• When the INOSTG bit in the TRBIOC register is set to 1 (INT0 one-shot
The count value can be read out by reading registers TRBPR and TRBPRE.
• When registers TRBPRE, TRBSC, and TRBPR are written while the count
• When registers TRBPRE, TRBSC, and TRBPR are written to during count
• Output level select function
• One-shot trigger select function
• TRBO pin select function
contents of timer RB secondary before the count continues.
contents of timer RB primary before the count completes and the TOSSTF
bit is set to 0 (one-shot stops).
before it stops.
next trigger is generated.
period.
counting).
trigger disabled): programmable I/O port or INT0 interrupt input
trigger enabled): external trigger (INT0 interrupt input)
stops, values are written to both the reload register and counter.
operation, values are written to the reload registers only.
fi: Count source frequency
n: Value set in the TRBPRE register, m Value set in the TRBPR register
fi: Count source frequency
n: Value set in the TRBPRE register, p: Value set in the TRBSC register
The TOPL bit in the TRBIOC register selects the output level of the one-
shot pulse waveform.
Refer to 14.2.3.1 One-Shot Trigger Selection.
P3_1 or P1_3 is selected by the TRBOSEL bit in the PINSR2 register.
Specification
(1)
14. Timers
(2)