R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 376

• Manufacturer Part Number: R5F2121AJFP#U0
• Description: MCU FLASH 96K 5K CMOS 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/21r

Specifications of R5F2121AJFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/20 Group, R8C/21 Group
Rev.2.00 Aug 27, 2008
REJ09B0250-0200
17.5
Table 17.2
Synch Break Detection
Synch Break Generation
Completed
Synch Field Measurement
Bus Collision Detection
There are four interrupt requests that are generated by the hardware LIN: Synch Break detection, Synch Break
generation completed, Synch Field measurement, and bus collision detection. These interrupts are shared with the
timer RA interrupt.
Table 17.2 lists the Interrupt Requests of Hardware LIN.
Interrupt Request
Interrupt Requests
Interrupt Requests of Hardware LIN
Page 358 of 458
Status Flag
BCDCT
SBDCT
SFDCT
Generated when timer RA has underflowed after measuring
the low level duration of RXD0 input, or when a low-level
signal is input for a duration longer than the Synch Break
period during communication.
Generated when timer RA has completed outputting a low-
level signal to TXD0 for set period.
Generated when measurement for 8 bits of the Synch Field
by timer RA is completed.
Generated when the RXD0 input and TXD0 output values
differed at data latch timing while UART0 is enabled for
transmission.
Cause of Interrupt
17. Hardware LIN