參數(shù)資料
型號(hào): PCI1520I
廠商: Texas Instruments, Inc.
英文描述: PC CARD CONTROLLERS
中文描述: PC卡控制器
文件頁數(shù): 64/138頁
文件大小: 745K
代理商: PCI1520I
42
A bit description table, typically included when a register contains bits of more than one type or purpose, indicates
bit field names, which appear in the signal column; a detailed field description, which appears in the function column;
and field access tags, which appear in the type column of the bit description table. Table 42 describes the field
access tags.
Table 42. Bit Field Access Tag Descriptions
ACCESS TAG
NAME
MEANING
R
Read
Field may be read by software.
W
Write
Field may be written by software to any value.
S
Set
Field may be set by a write of 1. Writes of 0 have no effect.
C
Clear
Field may be cleared by a write of 1. Writes of 0 have no effect.
U
Update
Field may be autonomously updated by the PCI1520.
4.2
Vendor ID Register
This 16-bit register contains a value allocated by the PCI Special Interest Group (SIG) and identifies the manufacturer
of the PCI device. The vendor ID assigned to TI is 104Ch.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Vendor ID
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
1
0
0
0
0
0
1
0
0
1
1
0
0
Register:
Offset:
Type:
Default:
Vendor ID
00h (functions 0, 1)
Read-only
104Ch
4.3
Device ID Register
This 16-bit register contains a value assigned to the PCI1520 by TI. The device identification for the PCI1520 is
AC55h.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Device ID
Type
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Default
1
0
1
0
1
1
0
0
0
1
0
1
0
1
0
1
Register:
Offset:
Type:
Default:
Device ID
02h (functions 0, 1)
Read-only
AC55h
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