M30245_06 RENESAS [Renesas Technology Corp], M30245_06 Datasheet - Page 174
M30245_06
Manufacturer Part Number
M30245_06
Description
RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30245_06.pdf
(367 pages)
- Current page: 174 of 367
- Download datasheet (4Mb)
M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
- Returning Routine of USB Function Control Unit
To return from the USB suspend state to the previous state, perform return control of the USB function
control unit as follows.
Further, clearing the bit of protect register (address 000A
synthesizer control register (address 03DC
Do not write to USB-related registers (other than the USBC, USBAD, and frequency synthesizer re-
lated registers) when the USB clock has been disabled in the suspend state.
1: Set frequency synthesizer enable bit of frequency synthesizer control register to “1”.
2: Wait for 3ms.
3: Check that frequency synthesizer lock status bit of frequency synthesizer control register is set to
4: Set USB clock enable bit of USB control register to “1”.
“1”. When this bit has been set to “0”, wait for 0.1ms, and then, check again. Repeat the re-check
until the bit becomes “1”.
page 165 of 354
16
).
16
) is required for changes in frequency
2. USB function
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