UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 1494

• Manufacturer Part Number: UPD70F3786GJ-GAE-AX
• Description: MCU 32BIT V850ES/JX3-E 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Er

Specifications of UPD70F3786GJ-GAE-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, CSI, EBI/EMI, Ethernet, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 100
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 124K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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(2) Areas accessible by DMA transfer
(3) DMA address boundary
(4) DMA arbitration
The areas subject to DMA transfer are shown below.
With the DMAC of in the Ethernet controller, the address boundary does not have to be considered when
setting the start address of the data buffer and the number of transfer bytes.
If there is fractional data during burst transfer, the fraction is automatically processed before the data is
transferred.
However, because it is not possible to predict where the data to be received will end, the last transfer may be a
dummy transfer when burst transfer is used.
Remark
Because the Ethernet controller supports full-duplex transfer, DMA transmission and DMA reception may be
executed together. If DMA requests for transmission and reception are made at the same time, the request for
reception takes precedence.
Internal ROM
inaccessible
When the 4-, 8-, or 16-beat transfer mode is used, the last data that falls short of a fixed length is
automatically transferred in undefined length mode.
Byte access for byte alignment is always executed in the single transfer mode.
Table 23-6. Areas Subject to Transfer by DMAC in Ethernet Controller
Internal RAM
inaccessible
CHAPTER 23 ETHERNET CONTROLLER
User’s Manual U19601EJ2V0UD
Accessible
Data RAM
External Memory
Accessible
On-chip Peripheral I/O
Inaccessible