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Section 22 USB Function Module (USB)
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
7
CNFV1
6
CNFV0
5
INTV1
4
INTV0
3
2
ALTV2
1
ALTV1
0
ALTV0
22.3.24 Control Register (CTLR)
This register sets functions by setting bits ASCE, RSME, and, RWUPS.
Bit
Bit Name
7 to 5
4
RWUPS
Rev. 1.00 Mar. 12, 2008 Page 854 of 1178
REJ09B0403-0100
Initial
Value
R/W
Description
R
These bits store Configuration Setting value when
All 0
they receive Set Configuration command. CNFV is
updated when the SETC bit in IFR2 is set to 1.
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.
R
Reserved
0
This bit is always read as 0. The initial value should
not be changed.
0
R
These bits store Alternate Setting value when they
receive Set Interface command. ALTV2 to ALTV0 are
R
0
updated when the SETI bit in IFR2 is set to 1.
0
R
Initial
Value
R/W
Description
Reserved
All 0
R
These bits are always read as 0. The initial value
should not be changed.
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.
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