參數(shù)資料
型號(hào): W310
英文描述: Clocks and Buffers
中文描述: 時(shí)鐘和緩沖器
文件頁(yè)數(shù): 7/24頁(yè)
文件大小: 205K
代理商: W310
W310
PRELIMINARY
Document #: 38-07258 Rev. *A
Page 7 of 24
Table 3. 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 4. 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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