R5F212A8SNFA#U0 Renesas Electronics America, R5F212A8SNFA#U0 Datasheet - Page 235

• Manufacturer Part Number: R5F212A8SNFA#U0
• Description: IC R8C/2A MCU FLASH 64K 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Ar

Specifications of R5F212A8SNFA#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
14.3.4
Table 14.17
j = A, B, C, or D
Count source
Count operation
Count period
Count start condition
Count stop condition
Interrupt request generation
timing
TRCIOA, TRCIOB, TRCIOC,
and TRCIOD pin functions
INT0 pin function
Read from timer
Write to timer
Select functions
This function measures the width or period of an external signal. An external signal input to the TRCIOj (j = A,
B, C, or D) pin acts as a trigger for transferring the contents of the TRC register (counter) to the TRCGRj
register (input capture). The input capture function, or any other mode or function, can be selected for each
individual pin.
The TRCGRA register can also select fOCO128 signal as input-capture trigger input.
Table 14.17 lists the Specifications of Input Capture Function, Figure 14.43 shows a Block Diagram of Input
Capture Function, Figures 14.44 and 14.45 show registers associated with the input capture function, Table
14.18 lists the Functions of TRCGRj Register when Using Input Capture Function, and Figure 14.46 shows an
Operating Example of Input Capture Function.
Nov 26, 2007
Timer Mode (Input Capture Function)
Item
Specifications of Input Capture Function
Page 213 of 580
f1, f2, f4, f8, f32, fOCO40M, or external signal (rising edge) input to
TRCCLK pin
Increment
1/fk × 65,536 fk: Count source frequency
1 (count starts) is written to the TSTART bit in the TRCMR register.
0 (count stops) is written to the TSTART bit in the TRCMR register.
The TRC register retains a value before count stops.
• Input capture (valid edge of TRCIOj input or fOCO128 signal edge)
• The TRC register overflows.
Programmable I/O port or input capture input (selectable individually by
pin)
Programmable I/O port or INT0 interrupt input
The count value can be read by reading TRC register.
The TRC register can be written to.
• Input capture input pin select
• Input capture input valid edge selected
• Buffer operation (Refer to 14.3.3.2 Buffer Operation.)
• Digital filter (Refer to 14.3.3.3 Digital Filter.)
• Input-capture trigger selected
One or more of pins TRCIOA, TRCIOB, TRCIOC, and TRCIOD
Rising edge, falling edge, or both rising and falling edges
fOCO128 can be selected for input-capture trigger input of the
TRCGRA register.
Specification
14. Timers