r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 969

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

16.3.28 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.
16.3.29 Control Register (CTLR)
This register sets functions for bits PRTRST, ASCE, PWMD, RSME, PWUPS, and PULLUP_E.
Bit
7
6
5
4
3
2
1
0
Bit
7
6, 5
Bit Name
Bit Name
CNFV1
CNFV0
INTV1
INTV0

ALTV2
ALTV1
ALTV0
PULLUPE

Initial
Value
All 0
All 0
0
0
0
0
Initial
Value
0
0
R/W
R
R

R
R
R
R/W
R/W
R/W
Description
These bits store Configuration Setting value when
they receive Set Configuration command. CNFV is
updated when the SETC bit in IFR0 is set to 1.
These bits store Interface Setting value when they
receive Set Interface command. INTV is updated
when the SETI bit in IFR0 is set to 1.
Reserved
This bit is always read as 0. The write value should
always be 0.
These bits store Alternate Setting value when they
receive Set Interface command. ALTV2 to ALTV0 are
updated when the SETI bit in IFR0 is set to 1.
Description
Pull-up Enable
This bit controls whether to pull up the D+ pin. P20 is
used as the pull-up control pin.
0: D+ is not pulled up.
1: D+ is pulled up.
Reserved
The write value should always be 0.
Rev. 1.00 Sep. 19, 2008 Page 939 of 1342
Section 16 USB Function Module (USB)
REJ09B0467-0100