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参数资料
| 型号： | CY2287 |
| 厂商： | Cypress Semiconductor Corp. |
| 英文描述： | 100-MHz Spread Spectrum Clock Synthesizer/Driver with USB, Hublink, and SDRAM Support |
| 中文描述： | 100 MHz的扩频时钟合成器/驱动器，带有USB接口，Hublink，和SDRAM支持 |
| 文件页数： | 4/13页 |
| 文件大小： | 148K |
| 代理商： | CY2287 |
CY2287
4
Serial Configuration Map
The Serial bits will be read by the clock driver in the following
order:
Byte 0 - Bits 7, 6, 5, 4, 3, 2, 1, 0
Byte 1 - Bits 7, 6, 5, 4, 3, 2, 1, 0
.
.
Byte N - Bits 7, 6, 5, 4, 3, 2, 1, 0
Reserved and unused bits must be programmed to
“
0
”
.
I
2
C Address for the CY2287 is:
A6
1
A5
1
A4
0
A3
1
A2
0
A1
0
A0
1
R/W
0
Byte 0: Spread Spectrum, USB, SDRAM8
Control Register
(1 = Enable, 0 = Disable)
Default = Enable (for Bit [0:2])
Default = Disable (for Bit [3:7])
Bit
Pin #
Description
Bit 7 --
Reserved
Bit 6 --
Reserved
Bit 5 --
Reserved
Bit4
--
SEL2
Bit3
--
Spread Spectrum (Default = Disable)
Bit2
26
USB1
Bit1
25
USB0
Bit0
49
CPU2
Byte 1: SDRAM Control Register
(1 = Enable, 0 = Disable)
Default = Enable
Bit
Pin #
36
Description
Bit 7
SDRAM7
Bit 6
37
SDRAM6
Bit 5
39
SDRAM5
Bit 4
40
SDRAM4
Bit 3
42
SDRAM3
Bit 2
43
SDRAM2
Bit 1
45
SDRAM1
Bit 0
46
SDRAM0
Byte 2: PCI Control Register
(1 = Enable, 0 = Disable)
Default = Enable (for Bit [1:7])
Default = Disable (for Bit 0)
Bit
Pin #
Description
Bit 7
20
PCI7
Bit 6
19
PCI6
Bit 5
18
PCI5
Bit 4
16
PCI4
Bit 3
15
PCI3
Bit 2
13
PCI2
Bit 1
12
PCI1
Bit 0
11
Reserved
Byte 3: Peripheral Control Register
(0 = Enable, 1 = Disable)
Default = Enable
Bit
Pin #
Description
Bit 7
8
3V66_1
Bit 6
7
3V66_0
Bit 5
11
PCI0
Bit 4
34
SDRAM8
Bit 3
54
APIC1
Bit 2
55
APIC0
Bit 1
50
CPU1
Bit 0
52
CPU0
Byte 4: Reserved Register
(0 = Enable, 1 = Disable)
Default = Disable
Bit
Bit 7
Pin #
--
Description
Reserved
Bit 6
--
Reserved
Bit 5
--
Reserved
Bit 4
--
Reserved
Bit 3
--
Reserved
Bit 2
--
Reserved
Bit 1
--
Reserved
Bit 0
--
Reserved
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CY2287-1 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:100-MHz Spread Spectrum Clock Synthesizer/Driver with USB, Hublink, and SDRAM Support |
| CY2287PVC-1 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:100-MHz Spread Spectrum Clock Synthesizer/Driver with USB, Hublink, and SDRAM Support |
| CY2291 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291_02 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291_08 | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
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