R5F21236JFP#U0 Renesas Electronics America, R5F21236JFP#U0 Datasheet - Page 179
![IC R8C/23 MCU FLASH 48LQFP](/photos/28/61/286102/48-lqfp__plqp0048kb-a_sml.jpg)
R5F21236JFP#U0
Manufacturer Part Number
R5F21236JFP#U0
Description
IC R8C/23 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M16C/R8C/Tiny/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21236JFP#U0
Core Processor
R8C
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Peripherals
POR, Voltage Detect, WDT
Number Of I /o
41
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
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Quantity:
10 000
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R5F21236JFP#U0R5F21236JFP#U1
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
14.2.3
Table 14.9
NOTES:
Count Sources
Count Operations
One-Shot Pulse
Output Time
Count Start
Conditions
Count Stop
Conditions
Interrupt Request
Generation Timing
TRBO Pin Function
INT0 Pin Functions
Read from Timer
Write to Timer
Select Functions
1. The set value is reflected at the following one-shot pulse after writing to the TRBPR register.
2. Do not set both the TRBPRE and TRBPR registers to 00h.
Programmable one-shot generation mode is mode to output the one-shot pulse from the TRBO pin by a
program or an external trigger input (input to the INT0 pin) (see Table 14.9 Programmable One-Shot
Generation Mode Specifications). When a trigger is generated, the timer starts operating from the point only
once for a given period equal to the set value in the TRBPR register. The TRBSC register is unused in this
mode.
Figure 14.21 shows the TRBIOC Register in Programmable One-Shot Generation Mode. Figure 14.22 shows
the Operation Example of Programmable One-Shot Generation Mode.
Item
Programmable One-shot Generation Mode
Programmable One-Shot Generation Mode Specifications
Page 157 of 501
f1, f2, f8, timer RA underflow
• Decrement the setting value in the TRBPR register
• When the timer underflows, it reloads the contents of the reload register before
• When a count stops, the timer reloads the contents of the reload register before
(n+1)(m+1)/fi
fi: Count source frequency,
n: Setting value in TRBPRE register, m: Setting value in TRBPR register
• The TSTART bit in the TRBCR register is set to 1 (count starts) and the next
• Set the TOSST bit in the TRBOCR register to 1 (one-shot starts)
• Input trigger to the INT0 pin
• When reloading completes after Timer RB underflows during primary period.
• When the TOSSP bit in the TRBOCR register is set to 1 (one-shot stops)
• When the TSTART bit in the TRBCR register is set to 0 (stops counting)
• When the TSTOP bit in the TRBCR register is set to 1 (forcibly stops counting)
In half cycles of count source, after the timer underflows (at the same time as the
TRBO output ends) [timer RB interrupt]
Pulse output
• When the INOSTG bit in the TRBIOC register is set to 0 (INT0 one-shot trigger
• When the INOSTG bit in the TRBIOC register is set to 1 (INT0 one-shot trigger
The count value can be read out by reading the TRBPR and TRBPRE registers.
• When registers TRBPRE and TRBPR are written while the count is stopped,
• When registers TRBPRE and TRBPR are written during the count, values are
• Output level select function
• One-shot trigger select function
the count completes and the TOSSTF bit is set to 0 (one-shot stops).
it stops.
trigger is generated.
disabled), programmable I/O port or INT0 interrupt input
enabled), external trigger (INT0 interrupt input)
values are written to both the reload register and counter.
written to the reload register only (the data is transferred to the counter at the
following reload)
The TOPL bit in the TRBIOC register can select the output level of the one-shot
pulse waveform.
Refer to 14.2.3.1 One-Shot Trigger Selection.
(1)
.
Specification
(2)
14. Timers
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