UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 801

• 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: -

Figure 15-18. Example of Continuous Transmission (Pending Mode) Processing in FIFO Mode (DMA Control)
(7) Example of continuous transmission (pending mode) processing in FIFO mode (DMA control)
Notes 1.
Remark
2.
m = 0 to 3
In this control flow example, transmission of the data described in Note 2 is executed by a CPU
write operation. Exercise care in setting the number of data for DMA transfer (DBCm register) and
the source address (DSAmH, DSAmL registers).
Write as many transmit data as the number set as the trigger by the UBFIC2.UBTT3 to
UBFIC2.UBTT0 bits (= 1 byte) to transmit FIFO.
Set UARTB/DMAC-related
INTUBTIF interrupt = 1?
Write transmit FIFO
DTFRm register = 28H
UBTXE = 1 (UBCTL0)
UBTXE = 0 (UBCTL0)
Emm = 1 (DCHCm)
Clear transmit FIFO
DMA ended?
registers
START
END
CHAPTER 15 ASYNCHRONOUS SERIAL INTERFACE B (UARTB)
Yes
Yes
Note 1
Note 2
User’s Manual U18279EJ3V0UD
No
No
: Write transmit data
: Assign DMA transfer destination
: Enable DMA transfer
: Enable transmission
: DMA transfer ended?
: Transmission ended?
: Disable transmission
(in the case of INTUBTIT) and clear DFm bit
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