參數(shù)資料
型號： CY28408ZCT
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類： XO, clock
英文描述： Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVS01; Number of Contacts:3; Connector Shell Size:9; Connecting Termination:Crimp; Circular Shell Style:Straight Receptacle; Body Style:Straight
中文描述： 166 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO56
封裝： 6 X 14 MM, TSSOP2-56
文件頁數(shù)： 3/19頁
文件大?。?/td> 212K
代理商： CY28408ZCT
CY28408
Document #: 38-07617 Rev. **
Page 3 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. Clock device register changes
are normally made upon system initialization, if any are
required. The interface can also be used during system
operation for power management functions.
Data Protocol
The clock driver serial protocol accepts block write and block
read operations from the 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.
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
(6:0)
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'
Table 3. Block Read and Block Write Protocol
Block Write Protocol
Description
Block Read Protocol
Description
Bit
1
8:2
9
10
18:11
19
27:20
Bit
1
8:2
9
10
18:11
19
20
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 Bits
Acknowledge from slave
Byte Count – 8 bits
(Skip this step if I
2
C_EN bit set)
Acknowledge from slave
Data byte 1 – 8 bits
Acknowledge from slave
Data byte 2 – 8 bits
Acknowledge from slave
Data Byte /Slave Acknowledges
Data Byte N –8 bits
Acknowledge from slave
Stop
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 Bits
Acknowledge from slave
Repeat start
28
27:21
28
29
37:30
38
46:39
47
55:48
56
....
....
....
...
Slave address – 7 bits
Read = 1
Acknowledge from slave
Byte Count from slave – 8 bits
Acknowledge
Data byte 1 from slave – 8 bits
Acknowledge
Data byte 2 from slave – 8 bits
Acknowledge
Data bytes from slave / Acknowledge
Data Bte N from slave – 8 bits
NOT Acknowledge
Stop
36:29
37
45:38
46
....
....
....
....
Table 4. Byte Read and Byte Write Protocol
Byte Write Protocol
Description
Byte Read Protocol
Description
Bit
1
8:2
9
10
18:11
Bit
1
8:2
9
10
18:11
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 bits
Start
Slave address – 7 bits
Write
Acknowledge from slave
Command Code – 8 bits
相關(guān)PDF資料
PDF描述
CY28409 Clock Synthesizer with Differential SRC and CPU Outputs
CY28409ZCT Clock Synthesizer with Differential SRC and CPU Outputs
CY28409OC RF/Coaxial Connector; RF Coax Type:BNC; Contact Termination:Clamp; Body Style:Straight Plug; RG Cable Type:59, 62, 71, 140, 210, 302 RoHS Compliant: Yes
CY28409OCT Clock Synthesizer with Differential SRC and CPU Outputs
CY28409ZC RF/Coaxial Connector; RF Coax Type:UHF; Contact Termination:Solder; Body Style:Straight Plug; RG Cable Type:8, 9, 87A, 213, 214, 225; Body Plating:Nickel RoHS Compliant: Yes
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY28409 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Clock Synthesizer with Differential SRC and CPU Outputs
CY28409_06 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Clock Synthesizer with Differential SRC and CPU Outputs
CY28409AZXC 功能描述:時鐘發(fā)生器及支持產(chǎn)品 SysClk Intel Grntsdl 865 and 875 chipsets RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
CY28409AZXCT 功能描述:時鐘發(fā)生器及支持產(chǎn)品 SysClk Intel Grntsdl 865 and 875 chipsets RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
CY28409OC 功能描述:時鐘合成器/抖動清除器 SysClk Intel Grntsdl 865 and 875 chipsets RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel
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