參數(shù)資料
型號(hào): SPL505YC256BTT
廠商: Silicon Laboratories Inc
文件頁數(shù): 3/27頁
文件大?。?/td> 0K
描述: IC CLOCK CK505 BEARLAKE 56TSSOP
標(biāo)準(zhǔn)包裝: 2,000
類型: 時(shí)鐘/頻率發(fā)生器,多路復(fù)用器
PLL:
主要目的: Intel CPU,PCI Express(PCIe)
輸入: 晶體
輸出: LVCMOS
電路數(shù): 1
比率 - 輸入:輸出: 1:22
差分 - 輸入:輸出: 無/是
頻率 - 最大: 400MHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: 0°C ~ 85°C
安裝類型: *
封裝/外殼: *
供應(yīng)商設(shè)備封裝: *
包裝: *
SPL505YC25
.................... Document #: 001-03543 Rev *E Page 11 of 27
7
0
CPU_DAF_N7
If Prog_CPU_EN is set, the values programmed in CPU_DAF_N[8:0] and
CPU_DAF_M[6:0] will be used to determine the CPU output frequency. The
setting of the FS_Override bit determines the frequency ratio for CPU and
other output clocks. When it is cleared, the same frequency ratio stated in
the Latched FS[C:A] register will be used. When it is set, the frequency ratio
stated in the FSEL[2:0] register will be used
6
0
CPU_DAF_N6
5
0
CPU_DAF_N5
4
0
CPU_DAF_N4
3
0
CPU_DAF_N3
2
0
CPU_DAF_N2
1
0
CPU_DAF_N1
0
CPU_DAF_N0
Byte 14 Control Register 14
Byte 15 Control Register 15
Bit
@Pup
Name
Description
7
0
CPU_DAF_N8
See Byte 14 for description
6
0
CPU_DAF_M6
If Prog_CPU_EN is set, the values programmed are in CPU_FSEL_N[8:0]
and CPU_FSEL_M[6:0] will be used to determine the CPU output
frequency. The setting of the FS_Override bit determines the frequency
ratio for CPU and other output clocks. When it is cleared, the same
frequency ratio stated in the Latched FS[C:A] register will be used. When it
is set, the frequency ratio stated in the FSEL[2:0] register will be used
5
0
CPU_DAF_M5
4
0
CPU_DAF_M4
3
0
CPU_DAF_M3
2
0
CPU_DAF_M2
1
0
CPU_DAF_M1
0
CPU_DAF_M0
Byte 16 Control Register 16
Bit
@Pup
Name
Description
7
0
PCI-E_N7
If Prog_SRC_EN is set, the values programmed in SRC_DAF_N[7:0] will
be used to determine the SRC output frequency.
60
PCI-E_N6
50
PCI-E_N5
40
PCI-E_N4
30
PCI-E_N3
20
PCI-E_N2
10
PCI-E_N1
00
PCI-E_N0
Byte 17 Control Register 17
Bit
@Pup
Name
Description
7
0
SMSW_EN
Enable Smooth Switching, 0 = Disabled, 1= Enabled
6
0
SMSW_SEL
Smooth switch select, 0 = CPU_PLL, 1 = SRC_PLL
5
0
RESERVED
4
0
Prog_PCI-E_EN
Programmable PCI-E frequency enable
0 = Disabled, 1= Enabled
3
0
Prog_CPU_EN
Programmable CPU frequency enable
0 = Disabled, 1= Enabled
2
0
RESERVED
1
0
RESERVED
0
RESERVED
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