R5F21258SNFP#U0 Renesas Electronics America, R5F21258SNFP#U0 Datasheet - Page 183

• Manufacturer Part Number: R5F21258SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21258SNFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 2.2V To 5.5V
• Embedded Interface Type: I2C, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: YMCRPR8C25 - REF PLATFORM MOTOR CTRL R8C/25R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
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.
Feb 29, 2008
Item
Programmable Wait One-Shot Generation Mode Specifications
Page 164 of 485
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
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 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 (count starts).
• When the TSTOP bit in the TRBCR register is set to 1 (count forcibly
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
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.
stops).
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.
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.
Specification
(1)
(2)
14. Timers