R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 400

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#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: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
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
timer RA.
Table 17.2 lists the Interrupt Requests of Hardware LIN.
Interrupt Request
Interrupt Requests
Feb 29, 2008
Interrupt Requests of Hardware LIN
Page 381 of 485
Status Flag
BCDCT
SBDCT
SFDCT
Generated when the RXD0 input and TXD0 output values
Generated when timer RA has underflowed after measuring
the “L” level duration of RXD0 input, or when a “L” level is
input for a duration longer than the Synch Break period
during communication.
Generated when “L” level output to TXD0 for the duration set
by timer RA completes.
Generated when measurement for 6 bits of the Synch Field
by timer RA is completed.
differed at data latch timing while UART0 is enabled for
transmission.
Cause of Interrupt
17. Hardware LIN