USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications
Datasheet
Table 7.15 Upstream (Port 0) Battery Charging Control 2 Register
BC_CTL_2
(0x6101- RESET=0x00)
UPSTREAM (PORT 0) BATTERY CHARGING CONTROL 2
REGISTER
BIT
NAME
R/W
DESCRIPTION
7
BC_10_125K_PU_DP
R/W
Setting this bit enables a 125K pull-up to VDD33 on DP. This
is used for USB battery charging in 1.0 mode detection only.
6
5
BC_10_125K_PU_DM
LINESTATE_DP
R/W
R
Setting this bit enables a 125K pull-up to VDD33 on DM. This
is used for USB battery charging in 1.0 mode detection only.
This is the direct value of the Full-Speed USB line state Data
Plus. It is used for battery charging detection. This line is not
valid in HS mode and should only be used in battery charging
detection.
4
LINESTATE_DM
R
This is the direct value of the Full-Speed USB line state Data
Minus. It is used for battery charging detection. This line is not
valid in HS mode and should only be used for battery charging
detection.
3
USB2_FS_DP
USB2_FS_DM
Reserved
R
R
R
This is the raw Full-Speed single ended receiver output for
Data Plus
2
This is the raw Full-Speed single ended receiver output for
Data Minus
1:0
Always read ‘0’
Revision 1.0 (06-17-13)
46
SMSC USB3813
DATASHEET
SMSC [ SMSC CORPORATION ]
