UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 800

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

798
(6) Example of continuous reception processing in FIFO mode (CPU control)
Notes 1.
Set UARTB-related registers
INTUBTIRE interrupt = 1?
INTUBTITO interrupt = 1?
Read receive FIFO
Check UBFIS0 register
UBRXE = 1 (UBCTL0)
UBRXE = 0 (UBCTL0)
Clear receive FIFO
Reception ended?
Figure 15-17. Example of Continuous Reception Processing in FIFO Mode (CPU Control)
2.
START
Read as many receive data as the number set as the trigger by the UBFIC2.UBRT3 to
UBFIC2.UBRT0 bits from receive FIFO in the pending mode (UBFIC0.UBIRM bit = 0). In the
pointer mode (UBIRM bit = 1), reference the UBFIS0.UBRB4 to UBFIS0.UBRB0 bits and read as
many data as the number of bytes stored in receive FIFO from receive FIFO.
Read as many data (remaining receive data less than the number set as the trigger) as the
number of bytes stored in receive FIFO from receive FIFO by referencing the UBFIS0.UBRB4 to
UBFIS0.UBRB0 bits.
END
Yes
Yes
No
Note 2
CHAPTER 15 ASYNCHRONOUS SERIAL INTERFACE B (UARTB)
: Enable reception
: Disable reception
: Read receive data remaining in receive FIFO
No
Yes
No
INTUBTIR interrupt = 1?
Read receive FIFO
Error processing in
FIFO mode
User’s Manual U18279EJ3V0UD
Yes
Note 1
No
: Read receive data
: Reception timeout occurred?
: Reading from receive FIFO enabled?
: Reception error occurred?
: Reading all receive data ended?