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XIO2000AI 数据表(PDF) 133 Page - Texas Instruments

部件名 XIO2000AI
功能描述  XIO2000A/XIO2000AI PCI Express to PCI Bus Translation Bridge
PDF  165 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

XIO2000AI 数据表(HTML) 133 Page - Texas Instruments

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Memory-Mapped TI Proprietary Register Space
124
April 2007 Revised October 2008
SCPS155C
6.14 Upstream Isochronous Window 3 Control Register
The upstream isochronous window 3 control register allows software to identify the TC associated with
upstream transactions targeting memory addresses in the range defined by the window. See Table 6−7 for
a complete description of the register contents.
Device control memory window register offset:
2Ch
Register type:
Read-only, Read/Write
Default value:
0000h
BIT NUMBER
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 6−7. Upstream Isochronous Window 3 Control Register Description
BIT
FIELD NAME
ACCESS
DESCRIPTION
15:4
RSVD
R
Reserved. Returns 000h when read.
3:1
TC_ID
RW
Traffic class ID. ID of the traffic class that upstream transactions targeting the range defined
by the associated window must be mapped to. The default value for this field is 000b.
0
ISOC_WINDOW_EN
RW
Isochronous window enable.
0 = Address window does not impact upstream traffic (default)
1 = Upstream transactions targeting addresses within the range of this window are
applied to the appropriate TC
6.15 Upstream Isochronous Window 3 Base Address Register
The upstream isochronous window 3 base address register allows software to configure the base address for
this upstream isochronous window. The entire 32-bit field is read/write and acts as scratchpad space if the
window is disabled.
Device control memory window register offset:
30h
Register type:
Read/Write
Default value:
0000 0000h
BIT NUMBER
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 NUMBER
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
6.16 Upstream Isochronous Window 3 Limit Register
The upstream isochronous window 3 limit register allows software to configure the upper address bound for
this upstream isochronous window. The entire 32-bit field is read/write and acts as scratchpad space if the
window is disabled.
Device control memory window register offset:
34h
Register type:
Read/Write
Default value:
0000 0000h
BIT NUMBER
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 NUMBER
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



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