DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 728

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 15 USB Function Module (USB)
(3)
If the USB bus enters from the suspend state to software standby mode, perform the operation as
shown in figure 15.6. When canceling software standby mode, ensure enough time for the system
clock oscillation to be settled.
Rev.1.00 Sep. 08, 2005 Page 678 of 966
REJ09B0219-0100
Transition from Suspend State to Software Standby Mode and Canceling Software
Standby Mode
Denotation of figures
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Figure 15.6 Flow of Transition to and Canceling Software Standby Mode
Clear SURSF in IFR2 to 0
Check if SURSS in IFR2 is set to 1
Clear SURSF in IER2 to 0
Set SSRSME in IER2 to 1
Shift to software standby mode
(execute SLEEP instruction)
Detect that USB bus is in suspend state
: Operation by firmware setting
: Automatic operation by LSI hardware
Transition from suspend state to
Set SURSF in IFR2 to 1
software standby mode
Stop all clocks of LSI
USBINTN interrupt
(10)
(11)
(12)
(8)
(9)
Wait for system clock oscillation to be settled
Clear SURSF in IFR2 to 0
Check if SURSS in IFR2 is cleared to 0
Set SURSF in IER2 to 1
Clear SSRSME in IER2 to 0
USB communications can be resumed
through USB registers
Detect that USB bus is in resume state
Canceling software standby mode
Cancel software standby mode
RESUME interrupt