R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 326

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/33C Group
REJ09B0570-0100 Rev.1.00 Dec. 14, 2009
Page 296 of 589
Table 20.4
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
Selectable functions
Item
Output Compare Mode Specifications
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, fC, 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
20. Timer RE