SH7641 Datasheet, PDF (815/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 20 USB Function Module
20.3.23 USB Bus Power Control Register (USBCTRL)
This LSI can operate using a bus power control method. For details of the bus power control
method, see section 20.9, USB Bus Power Control Method.
USBCTRL can be initialized to H'00 by a power-on reset.
Bit
7 to 2
Bit Name

Initial
Value
All 0
1
SUSPEND 0
0
PWMD
0
R/W Description
R Reserved
The write value should always be 0.
R/W USB Suspend Enable
Allows an interrupt by the USB suspend signal or
awake signal detection.
R/W Power Mode
Changes how the power is supplied.
0: Self-powered
1: Bus-powered
Rev. 4.00 Sep. 14, 2005 Page 765 of 982
REJ09B0023-0400