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參數(shù)資料
| 型號： | CY28317PVXC-2T |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK FTG VIA PL/E133T 48SSOP |
| 標準包裝： | 1,000 |
| 類型： | 時鐘/頻率發(fā)生器 |
| PLL： | 是 |
| 輸入： | 晶體 |
| 輸出： | HCSL，LVCMOS |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:20 |
| 差分 - 輸入:輸出： | 無/是 |
| 頻率 - 最大： | 248MHz |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-BSSOP（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 48-SSOP |
| 包裝： | 帶卷 (TR) |
CY28317-2
..................... Document #: 38-07094 Rev. *B Page 11 of 20
Byte 14: Programmable Frequency Select M-Value Register
Bit
Name
Default
Description
Bit 7
Pro_Freq_EN
0
Programmable output frequencies enabled
0 = Disabled
1 = Enabled
Bit 6
CPU_FSEL_M6
0
If Prog_Freq_EN is set, CY28317-2 will use the values programmed in
CPU_FSEL_N[7:0] and CPU_FSEL_M[6:0] to determine the CPU output
frequency. The new frequency will start to load whenever CPU_FSELM[6:0] is
updated.
The setting of the FS_Override bit determines the frequency ratio for CPU,
SDRAM and PCI. When it is cleared, CY28317-2 will use the same frequency
ratio stated in the Latched FS[4:0] register. When it is set, CY28317-2 will use
the frequency ratio stated in the SEL[4:0] register.
CY28317-2 supports programmable CPU frequencies ranging from 50 MHz to
248 MHz.
Bit 5
CPU_FSEL_M5
0
Bit 4
CPU_FSEL_M4
0
Bit 3
CPU_FSEL_M3
0
Bit 2
CPU_FSEL_M2
0
Bit 1
CPU_FSEL_M1
0
Bit 0
CPU_FSEL_M0
0
Byte 15: Reserved Register
Bit
Pin#
Name
Default
Description
Bit 7
–
Reserved
0
Reserved
Bit 6
–
Reserved
0
Reserved
Bit 5
–
Reserved
0
Reserved
Bit 4
–
Reserved
0
Reserved
Bit 3
–
Reserved
0
Reserved
Bit 2
–
Vendor test mode
0
Reserved. Write with ‘0’
Bit 1
–
Vendor test mode
1
Test mode. Write with ‘1’
Bit 0
–
Vendor test mode
1
Test mode. Write with ‘1’
Byte 16: Reserved Register
Bit
Pin#
Name
Default
Description
Bit 7
–
Reserved
0
Reserved
Bit 6
–
Reserved
0
Reserved
Bit 5
–
Reserved
0
Reserved
Bit 4
–
Reserved
0
Reserved
Bit 3
–
Reserved
0
Reserved
Bit 2
–
Reserved
0
Reserved
Bit 1
–
Reserved
0
Reserved
Byte 17: Reserved Register
Bit
Pin#
Name
Default
Description
Bit 7
–
Reserved
0
Reserved
Bit 6
–
Reserved
0
Reserved
Bit 5
–
Reserved
0
Reserved
Bit 4
–
Reserved
0
Reserved
Bit 3
–
Reserved
0
Reserved
Bit 2
–
Reserved
0
Reserved
Bit 1
–
Reserved
0
Reserved
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| CY28317ZC-2 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:FTG for Mobile VIA PL133T and PLE133T Chipsets |
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| CY28322-2 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:133-MHz Spread Spectrum Clock Synthesizer with Differential CPU Outputs |
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