SMSC USB2524 - Manual (Page 33)

USB MultiSwitch TM Hub
Datasheet
SMSC USB2524 33 Revision 1.91 (08-22-07)
DATASHEET
7.1.4.40 Register DEh: Port Assign Interface Configuration 3B (Reset = 0x00)
7.1.4.41 Register DFh: Port Assign Interface Configuration 3C (Reset = 0x00)
7.1.4.42 Register E0h: Port Assign Interface Configuration 3D (Reset = 0x00)
7.1.4.43 Register E1h: Port Assign Interface Configuration 4A (Reset = 0x00)
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PORT_INT_3B Port Assign Interface 3B: 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_3C Reserved, always = ‘0’.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PORT_INT_3D Reserved, always = ‘0’.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 PORT_INT_4A Port Assign Interface 4A: 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