參數(shù)資料
型號(hào)： TSB82AA2I
廠商： Texas Instruments, Inc.
英文描述： 1394b OHCI-LYNX CONTROLLER
中文描述： 的1394b OHCI的山貓控制器
文件頁(yè)數(shù)： 47/104頁(yè)
文件大?。?/td> 461K
代理商： TSB82AA2I
45
4.2
GUID ROM Register
The GUID ROM register accesses the serial EEPROM and is only applicable if bit 24 (GUID_ROM) in the OHCI
version register at OHCI offset 00h (see Section 4.1,
OHCI Version Register
) is set to 1. See Table 43 for a complete
description of the register contents.
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
GUID ROM
Type
RSU
R
R
R
R
R
RSU
R
RU
RU
RU
RU
RU
RU
RU
RU
Default
0
0
0
0
0
0
0
0
X
X
X
X
X
X
X
X
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
GUID ROM
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Type:
Offset:
Default:
GUID ROM
Read/Set/Update, Read/Update, Read-only
04h
00XX 0000h
Table 43. GUID ROM Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31
addrReset
RSU
Software sets bit 31 to 1 to reset the GUID ROM address to 0. When the TSB82AA2 device completes
the reset, it clears this bit. The TSB82AA2 device does not automatically fill bits 2316 (rdData field)
with the 0th byte.
3026
RSVD
R
Reserved. Bits 3026 return 0s when read.
25
rdStart
RSU
A read of the currently addressed byte is started when bit 25 is set to 1. This bit is automatically cleared
when the TSB82AA2 device completes the read of the currently addressed GUID ROM byte.
24
RSVD
R
Reserved. Bit 24 returns 0 when read.
2316
rdData
RU
This field represents the data read from the GUID ROM.
158
RSVD
R
Reserved. Bits 158 return 0s when read.
70
miniROM
R
Mini-ROM. The TSB82AA2 device uses bits 70 to indicate the first byte location of the mini-ROM
image in the GUID ROM. A value of 00h in this field indicates that no mini-ROM is implemented.
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