R5F2L3AAANFP#U1 Renesas Electronics America, R5F2L3AAANFP#U1 Datasheet - Page 270

• Manufacturer Part Number: R5F2L3AAANFP#U1
• Description: MCU FLASH 96+4KB 100LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/Lx/3AAr

Specifications of R5F2L3AAANFP#U1

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: LCD, POR, PWM, Voltage Detect, WDT
• Number Of I /o: 88
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 20x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group,
R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, R8C/L3AB Group
REJ09B0441-0100 Rev.1.00
Page 233 of 802
17.7
Table 17.6
Note:
Count sources
Count operations
Count start condition
Count stop conditions
Interrupt request
generation timing
TRAIO pin function
TRAO pin function
Read from timer
Write to timer
Selectable functions
1. Input a pulse with a period longer than twice the timer RA prescaler period. Also, input a pulse with
In pulse period measurement mode, the pulse period of an external signal input to the TRAIO pin is measured
(refer to Table 17.6).
Figure 17.4 shows an Operating Example in Pulse Period Measurement Mode.
a longer high-/low-level width than the timer RA prescaler period. If a pulse with a shorter period is
input to the TRAIO pin, the input may be ignored.
Pulse Period Measurement Mode
Item
Pulse Period Measurement Mode Specifications
f1, f2, f8, fOCO-S, fC32, fC
• Decrement
• After the active edge of the measured pulse is input, the contents of the read-
1 (count starts) is written to the TSTART bit in the TRACR register.
• 0 (count stops) is written to TSTART bit in the TRACR register.
• 1 (count forcibly stops) is written to the TSTOP bit in the TRACR register.
• When timer RA underflows or reloads [timer RA interrupt].
• Rising or falling of the TRAIO input (end of measurement period)
Measured pulse input
• When registers TRAPRE and TRA are written while the count is stopped,
• When registers TRAPRE and TRA are written during count operation, values
• Measurement period selection
• Measured pulse input pin select function
• Digital filter function
Programmable I/O port
The count value can be read out by reading registers TRA and TRAPRE.
Oct 30, 2009
out buffer are retained at the first underflow of timer RA prescaler. Then timer
RA reloads the contents of the reload register at the second underflow of
timer RA prescaler and continues counting.
[timer RA interrupt]
values are written to both the reload register and counter.
are written to the reload register and counter (refer to 17.3.2 Timer Write
Control during Count Operation ).
The measurement period of the input pulse is selected by the TEDGSEL in
the TRAIOC register.
Use of the TRAIO pin is selected by bits TRAIOSEL0 and TRAIOSEL1 in the
TRASR register.
Whether enabling or disabling the digital filter and the sampling frequency is
selected by bits TIPF0 and TIPF1 in the TRAIOC register.
(1)
Specification
17. Timer RA