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參數(shù)資料
| 型號： | W312-02HT |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | FTG for VIA K7 Series Chipset with Programmable Output Frequency |
| 中文描述： | 200 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 5/21頁 |
| 文件大小： | 143K |
| 代理商： | W312-02HT |
W312-02
Document #: 38-07259 Rev. *B
Page 5 of 21
Table 2. Word Read and Word Write Protocol
Word Write Protocol
Bit
1
Start
2:8
Slave address
–
7 bits
9
Write
10
Acknowledge from slave
11:18
Command Code
–
8 bits
‘
1xxxxxxx
’
stands for byte or word operation
bit[6:0] of the command code represents the off-
set of the byte to be accessed
19
Acknowledge from slave
20:27
Data byte low
–
8 bits
28
Acknowledge from slave
29:36
Data byte high
–
- 8 bits
37
Acknowledge from slave
38
Stop
Word Read Protocol
Description
Bit
1
2:8
9
10
11:18
Description
Start
Slave address
–
7 bits
Write
Acknowledge from slave
Command Code
–
8 bits
‘
1xxxxxxx
’
stands for byte or word operation
bit[6:0] of the command code represents the off-
set of the byte to be accessed
Acknowledge from slave
Repeat start
Slave address
–
7 bits
Read
Acknowledge from slave
Data byte low from slave
–
8 bits
Acknowledge
Data byte high from slave
–
8 bits
NOT acknowledge
Stop
19
20
21:27
28
29
30:37
38
39:46
47
48
Table 3. Byte Read and Byte Write Protocol
Byte Write Protocol
Bit
1
Start
2:8
Slave address
–
7 bits
9
Write
10
Acknowledge from slave
11:18
Command Code
–
8 bits
‘
1xxxxxxx
’
stands for byte operation
bit[6:0] of the command code represents the off-
set of the byte to be accessed
19
Acknowledge from slave
20:27
Data byte
–
8 bits
28
Acknowledge from slave
29
Stop
Byte Read Protocol
Description
Bit
1
2:8
9
10
11:18
Description
Start
Slave address
–
7 bits
Write
Acknowledge from slave
Command Code
–
8 bits
‘
1xxxxxxx
’
stands for byte operation
bit[6:0] of the command code represents the off-
set of the byte to be accessed
Acknowledge from slave
Repeat start
Slave address
–
7 bits
Read
Acknowledge from slave
Data byte from slave
–
8 bits
Not Acknowledge
Stop
19
20
21:27
28
29
30:37
38
39
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