USB MultiSwitchTM Hub
Datasheet
7.1.4.44
Register E2h: Port Assign Interface Configuration 4B (Reset = 0x00)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_4B
Port Assign Interface 4B: Determines the configuration of the hardware
interface configuration for the assignment of ports 3 & 4 to upstream hosts.
Bit [7:4] = ‘0000’ Port 4 is unassigned
‘0001’ Port 4 owned by UP1
‘0010’ Port 4 owned by UP2
‘0011’ Reserved, will default to ‘0001’ value
to
‘1111’
Bit [3:0] = ‘0000’ Port 3 is unassigned
‘0001’ Port 3 owned by UP1
‘0010’ Port 3 owned by UP2
‘0011’ Reserved, will default to ‘0001’ value
to
‘1111’
7.1.4.45
Register E3h: Port Assign Interface Configuration 4C (Reset = 0x00)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_4C
Reserved, always = ‘0’.
7.1.4.46
Register E4h: Port Assign Interface Configuration 4D (Reset = 0x00)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_4D
Reserved, always = ‘0’.
7.1.4.47
Register E5h: Port Assign Interface Configuration 5A (Reset = 0x00)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_5A
Port Assign Interface 5A: Determines the configuration of the hardware
interface configuration for the assignment of ports 1 & 2 to upstream hosts.
Bit [7:4] = ‘0000’ Port 2 is unassigned
‘0001’ Port 2 owned by UP1
‘0010’ Port 2 owned by UP2
‘0011’ Reserved, will default to ‘0001’ value
to
‘1111’
Bit [3:0] = ‘0000’ Port 1 is unassigned
‘0001’ Port 1 owned by UP1
‘0010’ Port 1 owned by UP2
‘0011’ Reserved, will default to ‘0001’ value
to
‘1111’
Revision 1.91 (08-22-07)
SMSC USB2524
DATA3S4HEET
SMSC [ SMSC CORPORATION ]
