R5F21324CNSP#U0 Renesas Electronics America, R5F21324CNSP#U0 Datasheet - Page 469

• Manufacturer Part Number: R5F21324CNSP#U0
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Cr

Specifications of R5F21324CNSP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/32C Group
REJ09B0573-0100 Rev.1.00 Dec. 18, 2009
Page 440 of 573
Figure 26.10
26.4.4
Timer RA
Timer RA
UART0
Hardware LIN Clear the status flags
Hardware LIN Set the LIN operation to stop
Figure 26.10 shows an Example of Hardware LIN Communication Completion Flowchart.
Use the following timing for hardware LIN end processing:
•
•
If the hardware bus collision detection function is used
Perform hardware LIN end processing after checksum transmission completes.
If the bus collision detection function is not used
Perform hardware LIN end processing after header field transmission and reception complete.
Hardware LIN End Processing
Transmission completes via UART0
Set the timer to stop counting
TSTART bit in TRACR register ← 0
Read the count status flag
TCSTF flag in TRACR register
Example of Hardware LIN Communication Completion Flowchart
(Bus collision detection, Synch Break detection, Synch
Field measurement)
Bits B2CLR, B1CLR, B0CLR in LINST register ← 1
LINE bit in LINCR register ← 0
TCSTF = 0?
YES
NO
Set the timer to stop counting.
Zero or one cycle of the timer RA
count source is required after
timer RA stops counting before
the TCSTF flag is set to 1.
If the bus collision detection
function is not used, UART0
transmission completion
processing is not required.
After clearing the hardware LIN
status flag, stop the hardware
LIN operation.
26. Hardware LIN