UPD70F3786GJ-GAE-AX Renesas Electronics America, UPD70F3786GJ-GAE-AX Datasheet - Page 1345

• 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: -

CHAPTER 22 USB FUNCTION CONTROLLER (USBF)
During bulk transfer (OUT), more data may be transmitted from the host than expected by the system.
Endpoint2 and Endpoint4 for bulk transfer (OUT) of the V850ES/JH3-E and V850ES/JJ3-E consist of two 64-
byte buffers so that NAK responses are suppressed as much as possible and data can be read from the CPU
side even while the bus side is being accessed as the transfer rate of the USB bus increases. Consequently, if
the host sends more data than expected by the system, up to 128 bytes of extra data may be automatically
received in the worst case. In this case, change the control flow from that of the normal processing of
Endpoint2 and Endpoint4 to the flow illustrated below when the quantity of data expected by the system has
decreased to two packets. This flowchart illustrates how Endpoint2 is controlled. Endpoint4 can also be
controlled in the same sequence. To use this flowchart as the control flow of Endpoint4, therefore, read the bit
names of Endpoint2 in the flowchart as those of Endpoint4.
1343
User’s Manual U19601EJ2V0UD