USB 2.0 Hi-Speed 3-Port Hub Controller Optimized for Portable Applications
Datasheet
7.3.2
Run Time SMBus Page Register
The following run time SMBus page register is located at 0xFF and must be programmed to allow the
SOC to page through different pages of the register space.
Table 7.18 SMBus Page Register
SMBUS_PAGE
(0xFF(I2C) - RESET= 0x00)
SMBUS PAGE REGISTER
BIT
NAME
R/W
DESCRIPTION
7:5
PAGE_SEL
R/W
From the I2C side, this field allows the I2C to select the accessible address
space:
000 = Select registers in the 3000 space (0x30e2 - 0x30ee)
010 = Select registers in the 3100 space (0x318b,0x318e)
110 = Select register in the 6100 space (0x6100,0x6101,0x6102)
5:0
Reserved
R
Reserved.
Note:
Software must never write a ‘1’ to these bits
Revision 1.0 (06-17-13)
48
SMSC USB3813
DATASHEET
SMSC [ SMSC CORPORATION ]
