UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 1513

• 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: -

If a descriptor chain is stored in the ring buffer, the descriptor can be updated by reading LSTRXDP or
LSTTXDP, using the TXI flag of the INTETMTX interrupt (RXI flag of the INTETMRX interrupt) as a trigger.
Buffer address pointer of new
transmit packet is set to descriptor
indicated by LSTTXDP.
Area indicated by buffer address
pointer of descriptor indicated by
LSTTXDP is released.
New transmit packet is organized.
by LSTTXDP link pointer?
Is descriptor indicated
Figure 23-23. Updating Descriptor Chain by Using LSTRXDP or LSTTXDP
TXI interrupt
Return
No
CHAPTER 23 ETHERNET CONTROLLER
Yes
User’s Manual U19601EJ2V0UD
Buffer address pointer of new
receive packet is created for
descriptor indicated by LSTTXDP.
Value of buffer address pointer of
descriptor indicated by LSTTXDP is
transferred to higher socket.
New receive buffer is allocated.
by LSTTXDP link pointer?
Is descriptor indicated
RXI interrupt
Return
No
Yes
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