R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 499
![IC R8C/23 MCU FLASH 48-LQFP](/photos/12/38/123822/r5f21238dfp_u0_sml.jpg)
R5F21238DFP#U0
Manufacturer Part Number
R5F21238DFP#U0
Description
IC R8C/23 MCU FLASH 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Specifications of R5F21238DFP#U0
Core Size
16/32-Bit
Program Memory Size
64KB (64K x 8)
Peripherals
POR, Voltage Detect, WDT
Core Processor
R8C
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Number Of I /o
41
Program Memory Type
FLASH
Ram Size
3K 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
No. Of I/o's
41
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Embedded Interface Type
CAN, I2C, UART
Rohs Compliant
Yes
Cpu Family
R8C
Device Core Size
16b
Frequency (max)
20MHz
Interface Type
I2C/UART
Total Internal Ram Size
3KB
# I/os (max)
41
Number Of Timers - General Purpose
5
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
3V
On-chip Adc
12-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
48
Package Type
LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 499 of 551
- Download datasheet (6Mb)
R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
22.3.3.4
22.3.3.5
22.3.3.6
22.3.3.7
Change procedure
Change procedure
Change procedure
Change procedure: When setting to complementary PWM mode (including re-set), or changing
Change procedure: When stopping complementary PWM mode
•
(1) Set the TSTARTi (i = 0 or 1) bit in the TRDSTR register to 0 (count stops).
(2) Change the TCK2 to TCK0 bits in the TRDCRi register.
•
(1) Set the TSTARTi (i = 0 or 1) bit in the TRDSTR register to 0 (count stops).
(2) Change the TCK2 to TCK0 bits in the TRDCRi register.
(3) Wait 2 cycles or more of f1.
(4) Set the FRA00 bit in the FRA0 register to 0 (high-speed on-chip oscillator stops).
•
•
•
•
(1) Set the TSTART0 bit in the TRDSTR register to 0 (count stops).
(2) Set the CMD1 to CMD0 bits in the TRDFCR register to 00b (timer mode, PWM mode, and PWM3
(3) Set the CMD1 to CMD0 bits to 01b (reset synchronous PWM mode).
(4) Set the registers associated with other Timer RD again.
•
•
(1) Set both the TSTART0 and TSTART1 bits in the TRDSTR register to 0 (count stops).
(2) Set the CMD1 to CMD0 bits in the TRDFCR register to 00b (timer mode, PWM mode, and PWM3
(3) Set the DMD1 to CMD0 bits to 10b or 11b (complementary PWM mode).
(4) Set the registers associated with other Timer RD again.
(1) Set both the TSTART0 and CSEL1 bits in the TRDSTR register to 0 (count stops).
(2) Set the CMD1 to CMD bits to 00b (other than reset synchronous PWM mode, complementary PWM
•
When switching the count source, switch it after the count stops.
When changing the count source from fOCO40M to the other and stopping fOCO40M, wait 2 cycles or
more of f1 after setting the clock switch, and then stop fOCO40M.
Set the pulse width of input capture signal to 3 cycles or more of the Timer RD operation clock. (Refer to
Table 14.11 Timer RD Operation Clocks.)
The value in the TRDi register is transferred to the TRDGRji register after 2 to 3 cycles of the Timer RD
operation clock since the input capture signal is applied to the TRDIOji pin (i = 0 or 1, j = either A, B, C or
D) (no digital filter).
When reset synchronous PWM mode is used for motor control, use it with OLS0 = OLS1.
Set to reset synchronous PWM mode in the following procedure:
When complementary PWM mode is used for motor control, use it with OLS0 = OLS1.
Change the CMD1 to CMD0 bits in the TRDFCR register in the following procedure.
Do not write to the TRDGRA0, TRDGRB0, TRDGRA1 and TRDGRB1 registers during operation.
When changing the PWM waveform, transfer the value written to the TRDGRD0, TRDGRC1 and
TRDGRD1 registers to the TRDGRB0, TRDGRA1 and TRDGRB1 registers using the buffer operation.
However, to write data to the TRDGRD0, TRDGRC1, or TRDGRD1 register, set bits BFD0, BFC1, and
BFD1 to 0 (general register). After this, bits BFD0, BFC1, and BFD1 may be set to 1 (buffer register).
The PWM period cannot be changed.
mode).
mode)
mode)
Count Source Switch
Input Capture Function
Reset Synchronous PWM Mode
Complementary PWM Mode
the transfer timing from the buffer register to the general register in complementary PWM
mode.
Page 477 of 501
22. Usage Notes
Related parts for R5F21238DFP#U0
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![R0K330290S001BE](/photos/28/41/284146/r0k330290s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K5212D8S001BE](/photos/24/13/241324/4607177_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K33062PS001BE](/photos/24/13/241320/4607173_tmb.jpg)
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521237S001BE](/photos/28/41/284170/r0k521237s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521256S001BE](/photos/24/13/241323/4607176_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
![YLCDRSK2456S](/images/manufacturer_photos/0/5/560/renesas_electronics_america_tmb.jpg)
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521380S000BE](/photos/28/41/284144/r0k521380s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521350S000BE](/photos/28/41/284145/r0k521350s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K52L3A0S000BE](/photos/28/41/284149/r0k52l3a0s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K556100S000BE](/images/manufacturer_photos/0/5/560/renesas_electronics_america_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K564189S000BE](/photos/28/41/284173/r0k564189s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K521276S000BE](/photos/9/26/92647/r0k521276s000be_tmb.jpg)
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K571242S001BE](/photos/9/23/92397/r0k571242s001be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K561622S000BE](/photos/9/23/92398/r0k561622s000be_tmb.jpg)
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet:
![R0K572030S000BE](/photos/9/24/92406/r0k572030s000be_tmb.jpg)
Part Number:
Description:
KIT DEV FOR SH7203
Manufacturer:
Renesas Electronics America
Datasheet: