SMSC USB2524 - Manual (Page 30)

USB MultiSwitch
TM
Hub
Datasheet
Revision 1.91 (08-22-07) 30 SMSC USB2524
DATASHEET
7.1.4.28 Register D2h: Port Assign Interface Configuration 0B (Reset = 0x00)
7.1.4.29 Register D3h: Port Assign Interface Configuration 0C (Reset = 0x00)
7.1.4.30 Register D4h: Port Assign Interface Configuration 0D (Reset = 0x00)
7.1.4.31 Register D5h: Port Assign Interface Configuration 1A (Reset = 0x00)
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PORT_INT_0B Port Assign Interface 0B: 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_0C Reserved, always = ‘0’.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PORT_INT_0D Reserved, always = ‘0’.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PORT_INT_1A Port Assign Interface 1A: 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