Datasheet

Section 22 USB Function Module (USB)
Rev. 2.00 Aug. 20, 2008 Page 852 of 1198
REJ09B0403-0200
22.3.23 Configuration Value Register (CVR)
This register stores the Configuration, Interface, or Alternate set value when the Set Configuration
or Set Interface command from the host is correctly received.
Bit Bit Name
Initial
Value
R/W Description
7
6
CNFV1
CNFV0
All 0
R These bits store Configuration Setting value when
they receive Set Configuration command. CNFV is
updated when the SETC bit in IFR2 is set to 1.
5
4
INTV1
INTV0
All 0 R These bits store Interface Setting value when they
receive Set Interface command. INTV is updated
when the SETI bit in IFR2 is set to 1.
3

0
R Reserved
This bit is always read as 0. The initial value should
not be changed.
2 ALTV2 0 R
1 ALTV1
0
R
0 ALTV0 0 R
These bits store Alternate Setting value when they
receive Set Interface command. ALTV2 to ALTV0 are
updated when the SETI bit in IFR2 is set to 1.
22.3.24 Control Register (CTLR)
This register sets functions by setting bits ASCE, RSME, and, RWUPS.
Bit Bit Name
Initial
Value
R/W Description
7 to 5
 All 0 R
Reserved
These bits are always read as 0. The initial value
should not be changed.
4 RWUPS 0 R Remote Wakeup Status
This status bit indicates remote wakeup command
from USB host is enabled or disabled.
This bit is set to 0 when remote wakeup command
from UBM host is disabled by
Device_Remote_Wakeup due to Set Feature or Clear
Feature request. This bit is set to 1 when remote
wakeup command is enabled.