R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 303
![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: 303 of 551
- Download datasheet (6Mb)
R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
15.1
Table 15.1
NOTES:
Transfer Data Format
Transfer Clocks
Transmit Start Conditions
Receive Start Conditions
Interrupt Request
Generation Timing
Error Detection
Select Functions
The clock synchronous serial I/O mode is mode to transmit and receive data using a transfer clock. This mode is
selected in UART0 only.
Table 15.1 lists the Clock Synchronous Serial I/O Mode Specifications. Table 15.2 lists the Registers Used and
Settings in Clock Synchronous Serial I/O Mode
1. When an external clock is selected, meet the conditions while the CKPOL bit in the U0C0 register is
2. If an overrun error occurs, the receive data (b0 to b8) of the U0RB register will be undefined. The IR
set to 0 (transmit data output at the falling edge and the receive data input at the rising edge of the
transfer clock), the external clock is held “H”; if the CKPOL bit in the U0C0 register is set to 1
(transmit data output at the rising edge and the receive data input at the falling edge of the transfer
clock), the external clock is held “L”.
bit in the S0RIC register remains unchanged.
Clock Synchronous Serial I/O Mode
Item
Clock Synchronous Serial I/O Mode Specifications
Page 281 of 501
• Transfer data length: 8 bits
• CKDIR bit in U0MR register is set to 0 (internal clock): fi/(2(n + 1))
• The CKDIR bit is set to 1 (external clock): input from CLK0 pin
• Before transmit starts, the following requirements are required
• Before receive starts, the following requirements are required
• When transmit, one of the following conditions can be selected
• When receive
• Overrun error
• CLK polarity selection
• LSB first, MSB first selection
• Continuous receive mode selection
fi = f1, f8, f32 n = setting value in U0BRG register: 00h to FFh
- The TE bit in the U0C1 register is set to 1 (transmit enabled)
- The TI bit in the U0C1 register is set to 0 (data in the U0TB register)
- The RE bit in the U0C1 register is set to 1 (receive enabled)
- The TE bit in the U0C1 register is set to 1 (transmit enabled)
- The TI bit in the U0C1 register is set to 0 (data in the U0TB register)
- The U0IRS bit is set to 0 (transmit buffer empty):
- The U0IRS bit is set to 1 (transmit completes):
When transferring data from the UART0 receive register to the U0RB
register (when receive completes)
This error occurs if serial interface starts receiving the following data before
reading the U0RB register and receives the 7th bit of the following data
Transfer data input/output can be selected to occur synchronously with the
rising or the falling edge of the transfer clock
Whether transmitting or receiving data beginning with the bit 0 or beginning
with the bit 7 can be selected
Receive is enabled immediately by reading the U0RB register
when transferring data from the U0TB register to UART0 transmit register
(when transmit starts)
when completing transmit data from UARTi transmit register
(2)
(1)
.
Specification
15. Serial Interface
(1)
(1)
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: