參數(shù)資料
型號: 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): 17/51頁
文件大小: 1783K
代理商: 24707_PUB
24707 Rev. 3.08 September 2003
Clock Generator Specification for AMD64 Processors
Table 2. Frequency Selections (Continued)
Input Configuration
P
(
P
P
(
2
(
1
(
Comment
F
F
F
P
S
P
S
2
X
0
0
0
X
1
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Tri-state mode
for board level
test
33 MHz vs. 66
MHz output
select
3
X
X
X
0
1
X
100,
133,
166 or
200
100,133
, 166, or
200
33
66
24 or
48
14.318
X
X
X
1
1
X
33
33
24 or
48
14.318
33 MHz vs. 66
MHz output
select
3
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.
Chapter 3
Frequency Selections
13
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