R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 327

• Manufacturer Part Number: R5F21236KFP#U0
• Description: IC R8C/23 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/23r

Specifications of R5F21236KFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• 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 ~ 125°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: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
16.2.3
Table 16.3
CEIE, RIE, TEIE and TIE: Bits in SSER register
ORER, RDRF, TEND and TDRE: Bits in SSSR register
Transmit Data Empty
Transmit End
Receive Data Full
Overrun Error
Conflict Error
Clock synchronous serial I/O with chip select has five interrupt requests: transmit data empty, transmit end,
receive data full, overrun error and conflict error. Since these interrupt requests are assigned to the clock
synchronous serial I/O with chip select interrupt vector table, determining interrupt sources by flags is required.
Table 16.3 shows the Clock Synchronous Serial I/O with Chip Select Interrupt Requests.
Generation conditions of Table 16.3 are met, a clock synchronous serial I/O with chip select interrupt request is
generated. Set the each interrupt source to 0 by a clock synchronous serial I/O with chip select interrupt routine.
However, the TDRE and TEND bits are automatically set to 0 by writing the transmit data to the SSTDR
register and the RDRF bit is automatically set to 0 by reading the SSRDR register. When writing the transmit
data to the SSTDR register, at the same time the TDRE bit is set to 1 (data is transmitted from the SSTDR to
SSTRSR registers) again and when setting the TDRE bit to 0 (data is not transmitted from the SSTDR to
SSTRSR registers), additional 1-byte data may be transmitted.
Interrupt Request
Interrupt Requests
Clock Synchronous Serial I/O with Chip Select Interrupt Requests
Page 305 of 501
TXI
TEI
RXI
OEI
CEI
Abbreviation
TIE = 1, TDRE = 1
TEIE = 1, TEND = 1
RIE = 1, RDRF = 1
RIE = 1, ORER = 1
CEIE = 1, CE = 1
Generation Condition
16. Clock Synchronous Serial Interface