R5F21272SDFP#U0 Renesas Electronics America, R5F21272SDFP#U0 Datasheet - Page 218

IC R8C/27 MCU FLASH 32LQFP

R5F21272SDFP#U0

Manufacturer Part Number
R5F21272SDFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet

Specifications of R5F21272SDFP#U0

Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
14.3.4
Table 14.16
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 14.16 lists the Specifications of Input Capture Function, Figure 14.42 shows a Block Diagram of Input
Capture Function, Figures 14.43 and 14.44 show the registers associated with the input capture function, Table
14.17 lists the Functions of TRCGRj Register when Using Input Capture Function, and Figure 14.45 shows an
Operating Example of Input Capture Function.
Sep 26, 2008
Timer Mode (Input Capture Function)
Item
Specifications of Input Capture Function
Page 199 of 453
f1, f2, f4, f8, f32, fOCO40M, or external signal (rising edge) input to
1 (count starts) is written to the TSTART bit in the TRCMR register.
Programmable I/O port or INT0 interrupt input
The count value can be read by reading TRC register.
TRCCLK pin
Increment
1/fk × 65,536 fk: Count source frequency
0 (count stops) is written to the TSTART bit in the TRCMR register.
• 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)
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
The TRC register retains a value before count stops.
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

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