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參數(shù)資料
| 型號： | CY28508OXCT |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 7/13頁 |
| 文件大小： | 0K |
| 描述： | IC CLOCK SSCG 3DIFF PAIR 28SSOP |
| 標準包裝： | 1,000 |
| 類型： | * |
| PLL： | 是 |
| 輸入： | 晶體 |
| 輸出： | 時鐘 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:4 |
| 差分 - 輸入:輸出： | 無/是 |
| 頻率 - 最大： | 333.3MHz |
| 除法器/乘法器： | 是/無 |
| 電源電壓： | 2.375 V ~ 3.465 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | * |
| 封裝/外殼： | * |
| 供應商設備封裝： | * |
| 包裝： | * |
CY28508
........................ Document #: 38-07534 Rev. *F Page 3 of 13
Table 1. Command Code Definition
Bit
Description
7
0 = Block read or block write operation
1 = Byte read or byte write operation
(6:0)
Byte offset for byte read or byte write operation. For block read or block write operations, these bits should
be ‘0000000’
Table 2. Block Read and Block Write Protocol
Block Write Protocol
Block Read Protocol
Bit
Description
Bit
Description
1Start
2:8
Slave address – 7 bits
2:8
Slave address – 7 bits
9
Write = 0
9
Write = 0
10
Acknowledge from slave
10
Acknowledge from slave
11:18
Command Code – 8 bits
‘00000000’ stands for block operation
11:18
Command Code – 8 bits
‘00000000’ stands for block operation
19
Acknowledge from slave
19
Acknowledge from slave
20:27
Byte Count from master – 8 bits
20
Repeat start
28
Acknowledge from slave
21:27
Slave address – 7 bits
29:36
Data byte 0 from master – 8 bits
28
Read = 1
37
Acknowledge from slave
29
Acknowledge from slave
38:45
Data byte 1 from master – 8 bits
30:37
Byte count from slave – 8 bits
46
Acknowledge from slave
38
Acknowledge
....
Data bytes from master/Acknowledge
39:46
Data byte 0 from slave – 8 bits
....
Data Byte N – 8 bits
47
Acknowledge
....
Acknowledge from slave
48:55
Data byte 1 from slave – 8 bits
....
Stop
56
Acknowledge
....
Data bytes from slave/Acknowledge
....
Data byte N from slave – 8 bits
....
Not Acknowledge
....
Stop
Table 3. Byte Read and Byte Write Protocol
Byte Write Protocol
Byte Read Protocol
Bit
Description
Bit
Description
1Start
2:8
Slave address – 7 bits
2:8
Slave address – 7 bits
9
Write = 0
9
Write = 0
10
Acknowledge from slave
10
Acknowledge from slave
11:18
Command Code – 8 bits
‘1xxxxxxx’ stands for byte operation, bits[6:0] of
the command code represents the offset of the
byte to be accessed
11:18
Command Code – 8 bits
‘1xxxxxxx’ stands for byte operation, bits[6:0]
of the command code represents the offset of
the byte to be accessed
19
Acknowledge from slave
19
Acknowledge from slave
20:27
Data byte from master – 8 bits
20
Repeat start
28
Acknowledge from slave
21:27
Slave address – 7 bits
29
Stop
28
Read = 1
29
Acknowledge from slave
30:37
Data byte from slave – 8 bits
38
Not Acknowledge
39
Stop
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