R5F212A8SNFP#U0 Renesas Electronics America, R5F212A8SNFP#U0 Datasheet - Page 388

• Manufacturer Part Number: R5F212A8SNFP#U0
• Description: IC R8C/2A MCU FLASH 64LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Ar

Specifications of R5F212A8SNFP#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: 55
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2A Group, R8C/2B Group
Rev.2.00
REJ09B0324-0200
14.6.1
Table 14.55
Count sources
Count operations
Count period
Count start condition
Count stop condition
Interrupt request
generation timing
TRFI pin function
TRFO00 to TRFO02,
TRFO11 to TRFO12 pin
functions
Counter value reset timing In the following cases, the value in the TRF register is set to 0000h.
Read from timer
Write to timer
Select functions
In input capture mode, the edge of the TRFI pin input signal is used as a trigger to latch the timer value and the
width or the period of external signal is measured. The TRFI input is equipped with a digital filter, and this
prevents errors caused by noise or the like from occurring. Table 14.55 shows the Input Capture Mode
Specifications. Figure 14.181 shows an Operating Example in Input Capture Mode.
Nov 26, 2007
Input Capture Mode
Item
Input Capture Mode Specifications
Page 366 of 580
f1, f8, f32
• Transfer the value in the TRF register to the TRFM0 register at the valid
1/fk × 65536 fk: Frequency of count source
• The valid edge of TRFI input [capture interrupt]
• When timer RF overflows [timer RF interrupt]
Programmable I/O port
• When the TSTART bit in the TRFCR0 register is set to 0 (count stops).
• The count value can be read out by reading the TRF register.
• The count value at the measured pulse valid edge input can be read out by
Write to the TRF and TRFM0 registers is disabled.
• TRFI polarity selected
• Digital filter function
• Increment
The TSTART bit in the TRFCR0 register is set to 1 (count starts).
The TSTART bit in the TRFCR0 register is set to 0 (count stops).
Measured pulse input
edge of the measured pulse.
reading the TRFM0 register.
Selects the valid edge of the measured pulse.
(Bits TRFC03 to TRFC04 in the TRFCR0 register.)
The TRFI input is sampled, and when the sampled input level matches as
three times, the level is determined.
Selects the sampling clock of the digital filter.
(Bits TIPF0 to TIPF1 in the TRFCR1 register.)
Specification
14. Timers