UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 1486

• 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: -

1484
(8) Full-duplex operation
(9) Flow control and back pressure functions
(10) Timing of updating the transmission status
PHY interface
The transmission status is updated at the following timing.
A full-duplex operation is enabled when the MACC1.FULLD bit is set to 1. The IPG is always the value
specified by the IPGT register. The FULLD signal is asserted, when the MACC1.FULLD bit is set to 1 to report
to the external circuit that a full-duplex operation has been specified.
The Ethernet controller has a flow control function (refer to 23.5.4 (1) Flow control) and a back pressure
function (refer to 23.5.4 (2) Back pressure) associated with the receive FIFO.
automatically activated to prevent the FIFO from overflowing when the vacant capacity of the receive FIFO
runs short.
DMA transmission started
Transmit packet
FIFO
Figure 23-8. Transmission status update timing
CHAPTER 23 ETHERNET CONTROLLER
Transmit packet
User’s Manual U19601EJ2V0UD
DMAC for Ethernet
controller
DMA transmission completed
• TXINF1 updated
DMA reception started
Transmit packet
Transmission completed
• TXSTMONI1 updated
• TXSTMONI2 updated
• TXFINF1 updated
• TXFINF2 updated
• TXSTATUS updated
• FSTATUS updated
• INTETMTS occurred
• INTETMFS occurred
These functions are