R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 256

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#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: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/34C Group
REJ09B0586-0100 Rev.1.00 Jan 13, 2010
Page 223 of 723
17.4
Table 17.3
Note:
Count sources
Count operations
Divide ratio
Count start condition
Count stop conditions • 0 (count stops) is written to the TSTART bit in the TRACR register.
Interrupt request
generation timing
TRAIO pin function
TRAO pin function
Read from timer
Write to timer
Selectable functions
In pulse output mode, the internally generated count source is counted, and a pulse with inverted polarity is output
from the TRAIO pin each time the timer underflows (refer to Table 17.3 Pulse Output Mode Specifications).
1. The level of the output pulse becomes the level when the pulse output starts when the TRAMR
register is written to.
Pulse Output Mode
Item
Pulse Output Mode Specifications
f1, f2, f8, fOCO, fC32, fC
• Decrement
• When the timer underflows, the contents in the reload register is reloaded and
1/(n+1)(m+1)
n: Value set in TRAPRE register, m: Value set in TRA register
1 (count starts) is written to the TSTART bit in the TRACR register.
• 1 (count forcibly stops) is written to the TSTOP bit in the TRACR register.
When timer RA underflows [timer RA interrupt].
Pulse output, programmable output port
Programmable I/O port or inverted output of TRAIO
The count value can be read by reading registers TRA and TRAPRE.
• When registers TRAPRE and TRA are written while the count is stopped, values
• When registers TRAPRE and TRA are written during the count, values are
• TRAIO signal polarity switch function
• TRAO output function
• Pulse output stop function
• TRAIO pin select function
• TRAO pin select function
the count is continued.
are written to both the reload register and counter.
written to the reload register and counter (refer to 17.3.2 Timer Write Control
during Count Operation ).
The level when the pulse output starts is selected by the TEDGSEL bit in the
TRAIOC register.
Pulses inverted from the TRAIO output polarity can be output from the TRAO pin
(selectable by the TOENA bit in the TRAIOC register).
Output from the TRAIO pin is stopped by the TOPCR bit in the TRAIOC register.
P1_5 or P1_7 is selected by bits TRAIOSEL0 to TRAIOSEL1 in the TRASR
register.
P3_0 or P3_7 is selected by the TRAOSEL0 bit in the TRASR register.
(1)
Specification
17. Timer RA