UPD70F3769GF-GAT-AX Renesas Electronics America, UPD70F3769GF-GAT-AX Datasheet - Page 1088

• Manufacturer Part Number: UPD70F3769GF-GAT-AX
• Description: MCU 32BIT V850ES/JX3-U 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Ur

Specifications of UPD70F3769GF-GAT-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 48MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3-U, V850ES/JH3-U
21.3.3 USB power supply
R01UH0043EJ0300 Rev.3.00
Sep 30, 2010
(1) Overcurrent detection and power control
(2) VBUS control specification according to root hub register setting conditions
The V850ES/JG3-U and V850ES/JH3-U do not have a circuit for detecting overcurrent or controlling power to the
USB port.
To support these functions in the system, use an external circuit such as a USB high-side switch to configure these
functions and connect it with the OCI and PPON pins.
The following table shows the operations related to the OCI and PPON pins used for controlling the external circuit
for detecting overcurrent or controlling power to the USB port.
Figure 21-5 shows a connection example for overcurrent detection and power (VBUS) control. When the USB bus
is not used, power consumption can be reduced by stopping VBUS supply to the port, though its availability
depends on the connection to the USB connector. If the connected USB function device is buspowered, it is
recommended to use a high-side switch as shown in the connection example.
Control of the PPS bit for controlling VBUS varies depending on the setting of the HcRhDescriptorA and
HcRhDescriptorB (Root Hub control) registers.
When controlling VBUS for each port, the HcRhDescriptorA.NPS and HcRhDescriptorA.PSM bits must be set to “1”.
OCI
PPON
Pin
Input
Output
I/O
Table 21-3. OCI and PPON Signals
Level
1
0
1
0
Overcurrent not detected
Overcurrent detected
Power supply to VBUS is on
Power supply to VBUS is off
CHAPTER 21 USB HOST CONTROLLER (USBH)
Function
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