R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 198

• 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

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 14.30
Perform the following for the timer mode (input capture and output compare functions).
When using the TRDGRCi (i = 0 or 1) register as the buffer register of the TRDGRAi register
When using the TRDGRDi register as the buffer register of the TRDGRBi register
Bits IMFC and IMFD in the TRDSRi register are set to 1 at the input edge of the TRDIOCi pin when also using
registers TRDGRCi and TRDGRDi as the buffer register in the input capture function.
When using the TRDGRCi and TRDGRDi registers for the buffer register in output compare function, reset
synchronous PWM mode, complementary PWM mode and PWM3 mode, the IMFC and IMFD bits in the
TRDSRi register are set to 1 by the compare match with the TRDi register.
• Set the IOC3 bit in the TRDIORCi register to 1 (general register or buffer register).
• Set the IOC2 bit in the TRDIORCi register to the same as the IOA2 bit in the TRDIORAi register.
• Set the IOD3 bit in the TRDIORDi register to 1 (general register or buffer register).
• Set the IOD2 bit in the TRDIORCi register to the same value as the IOB2 bit in the TRDIORAi register.
i = 0 or 1
The above applies to the following conditions:
• BFCi bit in the TRDMR register is set to 1. (The TRDGRCi register is used as the buffer register of
• IOA2 to IOA0 bits in the TRDIORAi register are set to 001b (“L” output by the compare match).
the TRDGRAi register.)
Buffer Operation in Output Compare Function
TRDGRCi register
TRDGRAi register
TRDIOAi output
TRDi register
Page 176 of 501
(buffer)
TRDGRCi
register
(buffer)
m-1
Compare match signal
m
TRDGRAi
register
m
n
Comparator
Transfer
n
m+1
TRDi
14. Timers