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TUSB7340 数据表(PDF) 87 Page - Texas Instruments

部件名 TUSB7340
功能描述  TUSB73x0 USB 3.0 xHCI Host Controller
PDF  122 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

TUSB7340 数据表(HTML) 87 Page - Texas Instruments

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8.3.2.4 Host Controller Structural Parameters 2
This read only register defines basic structural parameters supported by the TUSB73X0.
BAR0 register offset: 08h
Register type: Read-Only
Default value: 0C00 00F1h
Table 8-133. HC Capability Register 08h
Bit
No.
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Reset
State
0
0
0
0
1
1
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
1
1
1
1
0
0
0
1
Table 8-134. HC Structural Parameters 2 Description
BIT
FIELD NAME
ACCESS
DESCRIPTION
31:27
MAX_SCRATCH_BUF
r
Max Scratchpad Buffers. This field indicates the number of Scratchpad
Buffers system software reserves. The TUSB73X0 uses one Scratchpad
Buffer.
26
SPR
r
Scratchpad Restore. This bit is 1b to indicate that the TUSB73X0
requires the integrity of the Scratchpad Buffer space to be maintained
across power events.
25:13
RSVD
r
Reserved. Returns zeros when read.
12:8
IOC_INTERVAL
r
IOC Interval. This field is 0b.
7:4
ERST_MAX
r
Event Ring Segment Table Max. This field is 1111b to indicate that the
TUSB73X0 supports up to 32K Event Ring Segment Table entries.
3:0
IST
r
Isochronous Scheduling Threshold. This field is 0001b to indicate that
software can add a TRB no later than 1 Microframes before that TRB is
scheduled to be executed.
8.3.2.5 Host Controller Structural Parameters 3
This read only register defines basic structural parameters supported by the TUSB73X0.
BAR0 register offset: 0Ch
Register type: Read-Only
Default value: 07FF 00A0h
Table 8-135. HC Capability Register 0Ch
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
1
1
1
1
1
1
1
1
1
1
1
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
1
0
1
0
www.ti.com
TUSB7320, TUSB7340
SLLSE76Q – MARCH 2011 – REVISED MARCH 2024
Copyright © 2024 Texas Instruments Incorporated
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Product Folder Links: TUSB7320 TUSB7340



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