R5F21258SNFP#U0 Renesas Electronics America, R5F21258SNFP#U0 Datasheet - Page 299

• 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 14.39
Count sources
Count operations
Count period
Count start condition
Count stop condition
Interrupt request generation
timing
TREO pin function
Read from timer
Write to timer
Select functions
Feb 29, 2008
Item
Output Compare Mode Specifications
Page 280 of 485
f4, f8, f32, fC4
• Increment
• When the 8-bit counter content matches with the TREMIN register
• When RCS2 = 0 (4-bit counter is not used)
• When RCS2 = 1 (4-bit counter is used)
fi: Frequency of count source
n: Setting value of TREMIN register
1 (count starts) is written to the TSTART bit in the TRECR1 register
0 (count stops) is written to the TSTART bit in the TRECR1 register
When the 8-bit counter content matches with the TREMIN register content
Select any one of the following:
• Programmable I/O ports
• Output f2, f4, or f8
• Compare output
When reading the TRESEC register, the 8-bit counter value can be read.
When reading the TREMIN register, the compare value can be read.
Writing to the TRESEC register is disabled.
When bits TSTART and TCSTF in the TRECR1 register are set to 0 (timer
stops), writing to the TREMIN register is enabled.
• Select use of 4-bit counter
• Compare output function
content, the value returns to 00h and count continues. The count value
is held while count stops.
1/fi x 2 x (n+1)
1/fi x 32 x (n+1)
Every time the 8-bit counter value matches the TREMIN register value,
TREO output polarity is reversed. The TREO pin outputs “L” after reset
is deasserted and the timer RE is reset by the TRERST bit in the
TRECR1 register. Output level is held by setting the TSTART bit to 0
(count stops).
Specification
14. Timers