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TUSB7320 bảng dữ liệu(PDF) 94 Page - Texas Instruments

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tên linh kiện TUSB7320
Giải thích chi tiết về linh kiện  USB 3.0 xHCI HOST CONTROLLER
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TUSB7320 bảng dữ liệu(HTML) 94 Page - Texas Instruments

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TUSB7320, TUSB7340
SLLSE76J – MARCH 2011 – REVISED MAY 2012
www.ti.com
Table 6-61. xHCI Extended Capabilities Register (xHCI Extended Capabilities Base + 14h)
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
No.
Reset
0
0
1
0
0
0
0
0
0
1
0
0
0
0
1
0
State
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
No.
Reset
0
1
0
1
0
0
1
1
0
1
0
1
0
1
0
1
State
6.6.5
xHCI Supported Protocol Port Register (USB 2.0)
This register indicates how many USB 2.0 ports are supported and what their port numbers are.
xHCI Extended Capabilities Base register offset:18h
Register type:Read-Only
Default value: 0001 0X01h
Table 6-62. xHCI Extended Capabilities Register (xHCI Extended Capabilities Base + 18h)
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
No.
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
State
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
No.
Reset
0
0
0
0
0
x
x
0
0
0
0
0
0
0
0
1
State
Table 6-63. xHCI Supported Protocol Capability Register (USB 2.0) Description
Bit
Field Name
Access
Description
31:19
RSVD
r
Reserved. Returns zeros when read.
Integrated Hub Implemented. This field is ‘0’ to indicate that the root hub
18
IHI
r
to external port mapping adheres to the default mapping in the xHCI
Specification.
High-speed Only. This field is ‘0’ to indicate that the USB 2.0 ports are
17
HSO
r
Low-, Full-, and High-speed capable.
L1 Capability. This field is ‘1’ to indicate that the TUSB73X0 supports the
16
L1C
r
USB 2.0 Link Power Management L1 state.
Compatible Port Count. For the TUSB7340 , this field is 04h to indicate
15:8
COMPATIBLE_PORT_CNT
r
that four USB 2.0 ports are supported. For the TUSB7320, this field is
02h to indicate that two USB 2.0 ports are supported.
Compatible Port Offset. This field is 01h to indicate that the first USB 2.0
7:0
COMPATIBLE_PORT_OFF
r
port is port 1.
6.6.6
xHCI Supported Protocol Capability Register (USB 3.0)
This register indicates that the Supported Protocol Capability is for USB 3.0.
xHCI Extended Capabilities Base register offset:20h
Register type:Read-Only
Default value: 0300 0002h
94
xHCI MEMORY MAPPED REGISTER SPACE
Copyright © 2011–2012, Texas Instruments Incorporated
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Product Folder Link(s): TUSB7320 TUSB7340



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