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参数资料
| 型号： | 9LPRS480YKLFT |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | PROC SPECIFIC CLOCK GENERATOR, PQCC64 |
| 封装： | ROHS COMPLIANT, PLASTIC, MLF-64 |
| 文件页数： | 10/25页 |
| 文件大小： | 249K |
| 代理商： | 9LPRS480YKLFT |
18
Integrated
Circuit
Systems, Inc.
ICS9LPRS480
1391D—02/02/09
SMBus Table: SB_SRC Frequency Control Register
Byte
4
Name
Control Function
Type
0
1
Default
Bit 7
S3
RW
0
Bit 6
S2
RW
0
Bit 5
S1
RW
0
Bit 4
S0
RW
0
Bit 3
SB_SRC_FS3
SB_SRC Frequency Select
RW
1
Bit 2
SB_SRC_FS2
SB_SRC Frequency Select
RW
1
Bit 1
SB_SRC_FS1
SB_SRC Frequency Select
RW
1
Bit 0
SB_SRC_FS0
SB_SRC Freq. Select LSB
RW
1
SMBus Table: 27MHz Slew Rate Control Register
Byte
5
Name
Control Function
Type
0
1
Default
Bit 7
1
Bit 6
1
Bit 5
1
Bit 4
1
Bit 3
SB_SRC Source
SB_SRC Source Selection
RW
SB_SRC PLL
SRC PLL
1
Bit 2
0
Bit 1
0
Bit 0
0
SMBus Table: I/O Vout Control Register
Byte
6
Name
Control Function
Type
0
1
Default
Bit 7
SRC Diff AMP
RW
00 = 700mV
01 = 800mV
0
Bit 6
SRC Diff AMP
RW
10 = 900mV
11 = 1000mV
1
Bit 5
CPU Diff AMP
RW
00 = 700mV
01 = 800mV
0
Bit 4
CPU Diff AMP
RW
10 = 900mV
11 = 1000mV
1
Bit 3
SB_SRC Diff AMP
RW
00 = 700mV
01 = 800mV
0
Bit 2
SB_SRC Diff AMP
RW
10 = 900mV
11 = 1000mV
1
Bit 1
X
Bit 0
X
SMBus Table: Vendor & Revision ID Register
Byte
7
Name
Control Function
Type
0
1
Default
Bit 7
RID3
R
-
0
Bit 6
RID2
R
-
0
Bit 5
RID1
R
-
0
Bit 4
RID0
R
-
1
Bit 3
VID3
R
-
0
Bit 2
VID2
R
-
0
Bit 1
VID1
R
-
0
Bit 0
VID0
R
-
1
See SB_SRC Frequency Select Table.
27_SSC
Spread Select
S[1:0]: 00 = -0.5% Default,
01 =1.0%, 10 = -1.5%, 11 = -2%.
See Table 3: 27Mhz_Spread, LCDCLK Spread
and Frequency Selection Table for additional
selections.
Reserved
SRC Differential output
Amplitude Control
SB_SRC Differential output
Amplitude Control
CPU Differential output
Amplitude Control
Reserved
REVISION ID
VENDOR ID
Reserved
These bits program the slew rate of the single
ended outputs. The maximum slew rate is
1.9V/ns and the minimum slew rate is 1.1V/ns.
The slew rate selection is as follows:
11 = 1.9V/ns
10 = 1.6V/ns
01 = 1.1V/ns
00 = tristated
27M_NS_Slew Rate
Slew Rate Control
RW
27M_SS_Slew Rate
Slew Rate Control
RW
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