DF2211NP24V Renesas Technology / Hitachi Semiconductor, DF2211NP24V Datasheet - Page 526

• Manufacturer Part Number: DF2211NP24V
• Description: H8S/2200 Series, 2212 Group, USB, RTC, HSS TNP-64B; Vcc= 2.7 to 3.6 volts, Temp= -20 to 75 C; Package: PVQN0064LB-A
• Manufacturer: Renesas Technology / Hitachi Semiconductor

14.3.3
UDRR indicates the enabled or disabled state of remote wakeup by the host, and executes the
remote wakeup of the USB modules in the suspend state.
Rev.7.00 Dec. 24, 2008 Page 472 of 698
REJ09B0074-0700
Bit
7 to 2 —
1
0
Bit Name
RWUPs
DVR
USB Device Resume Register (UDRR)
Initial Value R/W
All 0
0
0
R
R
W
Description
Reserved
These bits are always read as 0 and cannot be
modified.
Remote Wakeup Status
Indicates the enabled or disabled state of remote
wakeup by the host. This bit is a status bit and cannot
be written to. If the remote wakeup from the host is
disabled by Device_Remote_Wakeup through the
Set_Feature/Clear _Feature request, this bit is cleared
to 0. If the remote wakeup is enabled, this bit is set to
1.
0: Remote wakeup disabled state
1: Remote wakeup enabled state
Device Resume
Cancels the suspend state (executes the remote
wakeup). This bit can be written to 1 and is always
read as 0. Before executing the remote wakeup,
power-down mode or USB module stop mode must be
cancelled to provide a clock for the USB module.
0: Performs no operation
1: Cancels the suspend state (executes the remote
wakeup)