Texas Instruments XIO2213B Evaluation Module / Reference Design XIO2213BEVM XIO2213BEVM 데이터 시트
제품 코드
XIO2213BEVM
SCPS210F – OCTOBER 2008 – REVISED MAY 2013
8.1
OHCI Version Register
The OHCI version register indicates the OHCI version support and whether or not the serial EEPROM is
present. See
present. See
for a complete description of the register contents.
OHCI register offset:
00h
Register type:
Read only
Default value:
0X01 0010h
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
X
0
0
0
0
0
0
0
1
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
1
0
0
0
0
Table 8-2. OHCI Version Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31-25
RSVD
R
Reserved. Bits 31-25 return 000 0000b when read.
24
(1)
GUID_ROM
RU
The controller sets bit 24 to 1b if the serial EEPROM is detected. If the serial EEPROM is present, the
Bus_Info_Block is automatically loaded on system (hardware) reset. The default value for this bit is 0b.
Bus_Info_Block is automatically loaded on system (hardware) reset. The default value for this bit is 0b.
23-16
version
R
Major version of the OHCI. The controller is compliant with the 1394 Open Host Controller Interface
Specification, Release 1.2; thus, this field reads 01h.
Specification, Release 1.2; thus, this field reads 01h.
15-8
RSVD
R
Reserved. Bits 15-8 return 00h when read.
7-0
revision
R
Minor version of the OHCI. The controller is compliant with the 1394 Open Host Controller Interface
Specification, Release 1.2; thus, this field reads 10h.
Specification, Release 1.2; thus, this field reads 10h.
(1)
One or more bits in this register are reset by PERST or FRST.
134
1394 OHCI Memory-Mapped Register Space
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