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7643 Datasheet(PDF) 266 Page - Renesas Technology Corp |
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7643 Datasheet(HTML) 266 Page - Renesas Technology Corp |
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266 / 424 page  Rev.2.00 Aug 28, 2006 page 145 of 202 7643 Group REJ09B0133-0200 APPLICATION 2.6 USB Fig. 2.6.40 Control procedure (USB suspend interrupt routine) • USB clock enable bit : 48 MHz clock supply: stop • Frequency synthesizer disabled USBC,bit5 0 (Address 1316) FSC,bit0 0 (Address 6C16) USBC,bit3 1 (Address 1316) • USB line driver current: Low Total current consumption of peripheral function CLI STP instruction executed USB suspend interrupt routine IREQB 000000002 (Address 0316) • Timer 1 and timer 2 interrupt request bits cleared ICONB 000000002 (Address 0616) • Timer 1 and timer 2 interrupts disabled Other external interrupts disabled • When other external interrupts are not disabled and system is returned from suspend by except the USB resume interrupt, set the USB remote wake-up bit to “1”. < 500 µA |
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