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參數(shù)資料
| 型號： | CY28405OCT |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | Circular Connector; No. of Contacts:6; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:10; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:10-6 |
| 中文描述： | 200.9 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大小： | 259K |
| 代理商： | CY28405OCT |
CY28405
Document #: 38-07512 Rev. *B
Page 4 of 19
Serial Data Interface
To enhance the flexibility and function of the clock synthesizer,
a two-signal serial interface is provided. Through the Serial
Data Interface, various device functions, such as individual
clock output buffers, can be individually enabled or disabled.
The registers associated with the Serial Data Interface
initializes to their default setting upon power-up, and therefore
use of this interface is optional. The interface can also be
accessed during power-down operation.
Data Protocol
The clock driver serial protocol accepts Byte Write, Byte Read,
Block Write and Block Read operation from any external I
2
C
controller. For Block Write/Read operation, the bytes must be
accessed in sequential order from lowest to highest byte (most
significant bit first) with the ability to stop after any complete
byte has been transferred. For Byte Write and Byte Read
operations, the system controller can access individual
indexed bytes. The offset of the indexed byte is encoded in the
command code, as described in
Table 2
.
The Block Write and Block Read protocol is outlined in
Table 3
while
Table 4
outlines the corresponding Byte Write and Byte
Read protocol. The slave receiver address is 11010010 (D2h).
Table 2. Command Code Definition
Bit
7
Description
0 = Block Read or Block Write operation
1 = Byte Read or Byte Write operation
Byte offset for Byte Read or Byte Write operation. For Block Read or Block Write operations, these bits
should be ‘0000000’
(6:0)
Table 3. Block Read and Block Write Protocol
Block Write Protocol
Block Read Protocol
Bit
1
2:8
9
10
Description
Bit
1
2:8
9
10
Description
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8-bit ‘00000000’ stands for
block operation
Acknowledge from slave
Byte Count – 8 bits
Acknowledge from slave
Data byte 0 – 8 bits
Acknowledge from slave
Data byte 1 – 8 bits
Acknowledge from slave
Data Byte N/Slave Acknowledge...
Data Byte N – 8 bits
Acknowledge from slave
Stop
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8-bit ‘00000000’ stands for
block operation
Acknowledge from slave
Repeat start
Slave address – 7 bits
Read
Acknowledge from slave
Byte count from slave – 8 bits
Acknowledge
Data byte from slave – 8 bits
Acknowledge
Data byte from slave – 8 bits
Acknowledge
Data bytes from slave/Acknowledge
Data byte N from slave – 8 bits
Not Acknowledge
Stop
11:18
11:18
19
19
20
20:27
28
29:36
37
38:45
46
....
....
....
....
21:27
28
29
30:37
38
39:46
47
48:55
56
....
....
....
....
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| CY28405OXC | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT06; No. of Contacts:3; Connector Shell Size:8; Connecting Termination:Crimp; Circular Shell Style:Straight Plug; Body Style:Straight |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY28405OXC | 功能描述:IC CLOCK SYNTHESIZER 48-SSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| CY28405OXCT | 功能描述:IC CLOCK SYNTHESIZER 48-SSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:- 標(biāo)準(zhǔn)包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| CY28408 | 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:Clock Synthesizer with Differential CPU Outputs |
| CY28408ZC | 制造商:Cypress Semiconductor 功能描述: |
| CY28408ZCT | 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:Clock Synthesizer with Differential CPU Outputs |
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