R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 224

MCU 1KB FLASH 16K ROM 20-LSSOP

R5F21324CNSP#U0

Manufacturer Part Number
R5F21324CNSP#U0
Description
MCU 1KB FLASH 16K ROM 20-LSSOP
Manufacturer
Renesas Electronics America
Series
R8C/3x/32Cr
Datasheet

Specifications of R5F21324CNSP#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
15
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 85°C
Package / Case
20-LSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 195 of 573
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
1. The level of the output pulse becomes the level when the pulse output starts when the TRAMR
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).
register is written to.
Pulse Output Mode
Item
Pulse Output Mode Specifications
1 (count starts) is written to the TSTART bit in the TRACR register.
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 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
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.
(1)
Specification
17. Timer RA

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