HD6417705F133BV Renesas Electronics America, HD6417705F133BV Datasheet - Page 502

• Manufacturer Part Number: HD6417705F133BV
• Description: MPU 3V 0K PB-FREE 208 FP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417705F133BV

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 105
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

18.4
18.4.1
The above flowchart shows the operation in the case of in section 18.8, Example of USB External
Circuitry.
In applications that do not require USB cable connection to be detected, processing by the USB
bus connection interrupt is not necessary. Preparations should be made with the bus-reset
interrupt.
Rev. 2.00, 09/03, page 454 of 690
Operation
Cable Connection
No
USB bus connection interrupt
reception complete interrupt
Wait for setup command
UDC core reset release
USB cable connection
D+ pull-up enabled?
Cable disconnected
General output port
Bus reset reception
Bus reset interrupt
VBUS pin = 0 V
UDC core reset
IFR1.VBUS = 1
IFR0.BRST = 1
USB function
Yes
Figure 18.2 Cable Connection Operation
Interrupt request
Interrupt request
start of USB communication
reception complete interrupt
Firmware preparations for
completed, enable D+ pull-up
Wait for setup command
As soon as preparations are
(EP0, EP1, EP2, EP3)
Clear bus reset flag
USB module interrupt
in general output port
Clear VBUS flag
(IFR1.VBUS)
(IFR0.BRST)
Clear FIFOs
Application
setting
Initial
settings