參數(shù)資料
型號(hào): 24707_PUB
英文描述: Programmable Resolution 1-Wire Digital Thermometer
中文描述: 時(shí)鐘發(fā)生器規(guī)格的AMD Athlon? 64和AMD Opteron?處理器
文件頁數(shù): 16/51頁
文件大小: 1783K
代理商: 24707_PUB
Clock Generator Specification for AMD64 Processors
24707 Rev. 3.08 September 2003
Table 2. Frequency Selections (Continued)
Input Configuration
P
(
P
P
(
2
(
1
(
Comment
F
F
F
P
S
P
S
2
X
1
0
1
X
1
133
33
33 or
66
24 or
48
14.318 AMD Athlon
processor
compatible
1
4
0
0
X
1
X
100
33
33 or
66
24 or
48
14.318 AMD Athlon
processor
compatible
Reserved
2
Reserved
2
0
1
1
X
1
X
X1
input
(pin3
)
X1
input
=X1 /
6
(pin3)
=X1 /
6
(pin3)
0
0
0
1
0
X
1
X
0
0
1
1
1
X
Bypass mode
for bring up and
mfgr test
1
0
0
1
0
1
X
=X1 /
6
=X1 /
3
0
0
Bypass mode
for bring up and
mfgr test
1
Notes:
1.
During bypass mode the X1 input pin can be driven with an external clock signal from 10 MHz
to 100 MHz. This mode is used in system debug for frequency testing and is planned to be used
in the smart burn-in systems for the AMD64 processors used for production burn-in capability.
These operating modes are reserved for vendor specific test requirements and may be different
from vendor to vendor. These modes will not be used in the system.
In these cases, FS[2:0] is not equal to 000b or 001b.
It is highly recommended to connect an external pullup resistor and pull down resistor on
signals FS[2:0] and 24_48SEL_L to ensure that these signals achieve the desired logic level
and to determine the correct frequency selection under various loading and part leakage
conditions. The value for the external pull up resistor should be 10 k ohm and the value for the
external pull down resistor should be 1K ohm.
2
.
3.
4.
12
Frequency Selections
Chapter 3
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