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TUSB7340 Datasheet(PDF) 104 Page - Texas Instruments

Part # TUSB7340
Description  TUSB73x0 USB 3.0 xHCI Host Controller
PDF  122 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TUSB7340 Datasheet(HTML) 104 Page - Texas Instruments

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Table 8-181. xHCI Extended Capabilities Register (xHCI Extended Capabilities Base + 00h) (continued)
Reset
State
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
No.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
State
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
Table 8-182. USB Legacy Support Capability Register Description
BIT
FIELD NAME
ACCESS
DESCRIPTION
31:25
RSVD
r
Reserved. Returns zeros when read.
24
HC_OS_SEMA
rw
HC OS Owned Semaphore.
23:17
RSVD
r
Reserved. Returns zeros when read.
16
HC_BIOS_SEMA
rw
HC BIOS Owned Semaphore.
15:8
NEXT_CAP
r
Next Capability Pointer. This field is 04h, indicating that the xHCI
Supported Protocol Capability for USB 2.0 starts at offset 10h from the
xHCI Extended Capabilities Base.
7:0
CAPABILITY_ID
r
Capability ID. This field is 01h, identifying this capability as a USB
Legacy Support Capability.
8.3.6.2 USB Legacy Support Control/Status Register
This register is used by BIOS software to enable System Management Interrupts.
xHCI Extended Capabilities Base register offset: 04h
Register type: Read-Only, Read/Clear
Default value: 0000 0000h
Table 8-183. xHCI Extended Capabilities Register (xHCI Extended Capabilities Base + 04h)
Bit
No.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reset
State
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
No.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reset
State
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Table 8-184. USB Legacy Support Control/Status Register Description
BIT
FIELD NAME
ACCESS
DESCRIPTION
31
SMI_BAR
rc
SMI on BAR.
30
SMI_PCI_COM
rc
SMI on PCI Command.
29
SMI_OS_CHANGE
rc
SMI on OS Ownership Change.
28:21
RSVD
r
Reserved. Returns zeros when read.
20
SMI_HOST_SYS_ERR
r
SMI on Host System Error.
19:17
RSVD
r
Reserved. Returns zeros when read.
16
SMI_EVENT_INT
r
SMI on Event Interrupt.
15
SMI_BAR_EN
rw
SMI on BAR Enable.
14
SMI_PCI_COM_EN
rw
SMI on PCI Command Enable.
13
SMI_OS_EN
rw
SMI on OS Ownership Enable.
12:5
RSVD
r
Reserved. Returns zeros when read.
4
SMI_HOST_SYS_ERR_EN
rw
SMI on Host System Error Enable.
TUSB7320, TUSB7340
SLLSE76Q – MARCH 2011 – REVISED MARCH 2024
www.ti.com
104
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Copyright © 2024 Texas Instruments Incorporated
Product Folder Links: TUSB7320 TUSB7340



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