isp1564 NXP Semiconductors, isp1564 Datasheet - Page 63

• Manufacturer Part Number: isp1564
• Description: Isp1564 Hi-speed Universal Serial Bus Pci Host Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 96.
Address: Content of the base address register + 04h
Table 97.
Address: Content of the base address register + 08h
ISP1564_1
Product data sheet
Bit
31 to 16
15 to 12
11 to 8
7
6 to 5
4
3 to 0
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Bit
Symbol
Reset
Access
Symbol
reserved
N_CC
[3:0]
N_PCC
[3:0]
PRR
reserved
PPC
N_PORTS
[3:0]
HCSPARAMS - Host Controller Structural Parameters register bit description
HCCPARAMS - Host Controller Capability Parameters register bit allocation
11.2.3 HCCPARAMS register
31
23
15
R
R
R
0
0
0
Description
-
Number of Companion Controller: This field indicates the number of companion controllers
associated with this Hi-Speed USB Host Controller. A value of zero in this field indicates there are
no companion Host Controllers. Port-ownership hand-off is not supported. Only high-speed devices
are supported on the Host Controller root ports. A value larger than zero in this field indicates there
are companion Original USB Host Controller(s). Port-ownership hand-offs are supported.
Number of Ports per Companion Controller: This field indicates the number of ports supported
per companion Host Controller. It is used to indicate the port routing configuration to the system
software. For example, if N_PORTS has a value of 6 and N_CC has a value of 2, then N_PCC can
have a value of 3. The convention is that the first N_PCC ports are assumed to be routed to
companion controller 1, the next N_PCC ports to companion controller 2, and so on. In the previous
example, N_PCC could have been 4, in which case the first four are routed to companion
controller 1 and the last two are routed to companion controller 2.
The number in this field must be consistent with N_PORTS and N_CC.
Port Routing Rules: This field indicates the method used to map ports to companion controllers.
0 — The first N_PCC ports are routed to the lowest numbered function companion Host Controller,
the next N_PCC ports are routed to the next lowest function companion controller, and so on.
1 — The port routing is explicitly enumerated by the first N_PORTS elements of the
HCSP-PORTROUTE array.
-
Port Power Control: This field indicates whether the Host Controller implementation includes port
power control. Logic 1 indicates the port has port power switches. Logic 0 indicates the port does
not have port power switches. The value of this field affects the functionality of the Port Power field
in each port status and control register.
Number of Ports: This field specifies the number of physical downstream ports implemented on
this Host Controller. The value in this field determines how many port registers are addressable in
the operational register space. Logic 0 in this field is undefined.
The Host Controller Capability Parameters (HCCPARAMS) register is a 4-byte register,
and the bit allocation is given in
30
22
14
R
R
R
0
0
0
29
21
13
R
R
R
0
0
0
Rev. 01 — 4 December 2006
Table
28
20
12
R
R
R
0
0
0
reserved
reserved
reserved
97.
27
19
11
R
R
R
0
0
0
26
18
10
R
R
R
0
0
0
HS USB PCI Host Controller
25
17
R
R
R
0
0
9
0
© NXP B.V. 2006. All rights reserved.
ISP1564
24
16
R
R
R
0
0
8
0
63 of 99