參數(shù)資料
型號(hào): CYW305OXC
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 4/20頁(yè)
文件大?。?/td> 0K
描述: IC CLOCK W305 SOLANO 56SSOP
標(biāo)準(zhǔn)包裝: 26
類型: 時(shí)鐘/頻率發(fā)生器
PLL:
主要目的: Intel CPU 服務(wù)器
輸入: 晶體
輸出: 時(shí)鐘
電路數(shù): 1
比率 - 輸入:輸出: 1:15
差分 - 輸入:輸出: 無(wú)/是
頻率 - 最大: 200MHz
電源電壓: 2.375 V ~ 3.465 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 56-BSSOP(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 56-SSOP
包裝: 管件
W305B
...................... Document #: 38-07262 Rev. *B Page 12 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, W305B 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 FS_Override bit determines the frequency ratio for CPU,
SDRAM, AGP and SDRAM. When it is cleared, W305B will use the same
frequency ratio stated in the Latched FS[4:0] register. When it is set, W305B
will use the frequency ratio stated in the SEL[4:0] register.
W305B supports programmable CPU frequency 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
-
Reserved
0
Reserved
Bit 1
-
Reserved
1
Reserved. Write with ‘1’
Bit 0
-
Reserved
1
Reserved. 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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