R5F61668RN50FPV Renesas Electronics America, R5F61668RN50FPV Datasheet - Page 1041

• Manufacturer Part Number: R5F61668RN50FPV
• Description: IC H8SX/1668 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668RN50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 56K 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: 144-LQFP
• For Use With: R0K561668S000BE - KIT STARTER FOR H8SX/1668R0K561664S001BE - KIT STARTER FOR H8SX/1651HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(3)
If the USB bus enters from the suspend state to software standby mode, perform the operation as
shown in figure 20.6. When canceling software standby mode, ensure enough time for the system
clock oscillation to be settled.
Transition from Suspend State to Software Standby Mode and Canceling Software
Standby Mode
Denotation of figures
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Figure 20.6 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 SURSE 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)
Rev. 2.00 Sep. 24, 2008 Page 1007 of 1468
Wait for system clock oscillation to be settled
Clear SURSF in IFR2 to 0
Check if SURSS in IFR2 is cleared to 0
Set SURSE 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
Section 20 USB Function Module (USB)
Canceling software standby mode
Cancel software standby mode
RESUME interrupt
REJ09B0412-0200