Datasheet

Table Of Contents
Section 15 Universal Serial Bus Interface (USB)
REJ09B0140-0900 Rev. 9.00 Page 537 of 846
Sep 16, 2010
H8S/2215 Group
15.3.45 USB Configuration Value Register (UCVR)
UCVR stores the Configuration value, Interface Number value and Alternate Setting value when
the Set_Configuration and Set_Interface commands are received from the host.
Bit Bit Name Initial Value R/W Description
7, 6 All 0 R Reserved
These bits are always read as 0 and cannot be
modified.
5 CNFV0 0 R Configuration Value 0
Stores the Configuration value when the
Set_Configuration command is received. CNFV0 is
modified when the SETC bit in UIFR3 is set to 1.
4
3
INTV1
INTV0
0
0
R
R
Interface Number Value 1, 0
Store the Interface number value when the
Set_Interface command is received. INTV1 and
INTV0 are modified when the SETI bit in UIFR3 is
set to 1.
2
1
0
ATLV2
ATLV1
ATLV0
0
0
0
R
R
R
Alternate Setting Value 2 to 0
Store the Alternate Setting value when the
Set_Interface command is received. ATLV2 to
ATLV0 are modified when the SETI bit in UIFR3 is
set to 1.