Datasheet – SMSC USB2524 User Manual
Page 32
USB MultiSwitch
TM
Hub
Datasheet
Revision 1.91 (08-22-07)
32
SMSC USB2524
DATASHEET
7.1.4.36
Register DAh: Port Assign Interface Configuration 2B (Reset = 0x00)
7.1.4.37
Register DBh: Port Assign Interface Configuration 2C (Reset = 0x00)
7.1.4.38
Register DCh: Port Assign Interface Configuration 2D (Reset = 0x00)
7.1.4.39
Register DDh: Port Assign Interface Configuration 3A (Reset = 0x00)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_2B
Port Assign Interface 2B: 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’
to
‘1111’
Reserved, will default to ‘0001’ value
Bit [3:0] =
‘0000’ Port 3 is unassigned
‘0001’ Port 3 owned by UP1
‘0010’ Port 3 owned by UP2
‘0011’
to
‘1111’
Reserved, will default to ‘0001’ value
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_2C
Reserved, always = ‘0’.
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_2D
Reserved, always = ‘0’.
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
PORT_INT_3A
Port Assign Interface 3A: 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’
to
‘1111’
Reserved, will default to ‘0001’ value
Bit [3:0] =
‘0000’ Port 1 is unassigned
‘0001’ Port 1 owned by UP1
‘0010’ Port 1 owned by UP2
‘0011’
to
‘1111’
Reserved, will default to ‘0001’ value