11Portscx; 1Host Controller - Intel IXP45X Developer's Manual

Intel
Default Value: 0x00000001
Attribute:
Size:
This register is not used in this implementation. A read from this register returns a
constant of a 00000001h to indicate that all port routings default to this host controller.
9.12.11 PORTSCx
Address:
Default Value: IIII_RR00_0000_0000_0000_XX00_0000_0000b (host mode)
speed.
Attribute:
Size:
9.12.11.1 Host Controller
A host controller must implement one to eight port registers. The number of port
registers implemented by a particular instantiation of a host controller is documented in
the HCSPARAMs register. Software uses this information as an input parameter to
determine how many ports need service.
This register is only reset when power is initially applied or in response to a controller
reset. The initial conditions of a port are:
• No device connected
• Port disabled
If the port has port power control, this state remains until software applies power to
the port by setting port power to one.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
PSPD
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Intel IXP45X and Intel IXP46X Product Line of Network Processors
Developer's Manual
382
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IXP45X and Intel IXP46X Product Line of Network Processors—USB 2.0 Host Controller
Read Only
32 bits
Base + 184h + (4*(Port Number –1))
where Port Number =1,2,3,...8
I = Implementation dependent, this implementation: 0x4
X = Unknown
RR = after reset, the PSPD field is set to 0b11, which is not a defined
R0, Read/Write, R/WC (field dependent)
32 bits
PTC[3:0]
8
PIC LS
7 6 5 4 3 2 1 0
August 2006
Order Number: 306262-004US