Texas Instruments XIO2213B Evaluation Module / Reference Design XIO2213BEVM XIO2213BEVM 데이터 시트
제품 코드
XIO2213BEVM
SCPS210F – OCTOBER 2008 – REVISED MAY 2013
8.5
CSR Compare Register
The CSR compare register accesses the bus-management CSR registers from the host through compare-
swap operations. This register contains the data to be compared with the existing value of the CSR
resource.
swap operations. This register contains the data to be compared with the existing value of the CSR
resource.
OHCI register offset:
10h
Register type:
Read only
Default value:
XXXX XXXXh
BIT NUMBER
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESET STATE
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
BIT NUMBER
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESET STATE
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
8.6
CSR Control Register
The CSR control register accesses the bus-management CSR registers from the host through compare-
swap operations. This register controls the compare-swap operation and selects the CSR resource. See
swap operations. This register controls the compare-swap operation and selects the CSR resource. See
for a complete description of the register contents.
OHCI register offset:
14h
Register type:
Read/Write, Read/Update, Read only
Default value:
8000 000Xh
BIT NUMBER
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESET STATE
1
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
X
X
Table 8-5. CSR Control Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31
csrDpme
RU
Bit 31 is set to 1b by the controller when a compare-swap operation is complete. It is
cleared whenever this register is written.
cleared whenever this register is written.
32-2
RSVD
R
Reserved. Bits 30-2 return 0 0000 0000 0000 0000 0000 0000 0000b when read.
1-0
csrSel
RW
This field selects the CSR resource as follows:
00 = BUS_MANAGER_ID
01 = BANDWIDTH_AVAILABLE
10 = CHANNELS_AVAILABLE_HI
11 = CHANNELS_AVAILABLE_LO
01 = BANDWIDTH_AVAILABLE
10 = CHANNELS_AVAILABLE_HI
11 = CHANNELS_AVAILABLE_LO
Copyright © 2008–2013, Texas Instruments Incorporated
1394 OHCI Memory-Mapped Register Space
137
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