參數(shù)資料
型號(hào)： PC8245MTPU300D
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： Integrated Processor Family
中文描述： 32-BIT, 300 MHz, RISC PROCESSOR, PBGA352
封裝： 35 X 35 MM, 1.27 MM PITCH, TBGA-352
文件頁(yè)數(shù)： 45/61頁(yè)
文件大小： 429K
代理商： PC8245MTPU300D
45
PC8245
2171D–HIREL–06/04
PLL Configuration
The internal PLLs of the PC8245 are configured by the PLL_CFG[0:4] signals. For a
given PCI_SYNC_IN (PCI bus) frequency, the PLL configuration signals set both the
peripheral logic/memory bus PLL (VCO) frequency of operation for the PCI-to-memory
frequency multiplying and the PC603e CPU PLL (VCO) frequency of operation for mem-
ory-to-CPU frequency multiplying. The PLL configurations for the PC8245 is shown in
Table 16 and Table 17.
Table 16.
PLL Configurations (266 and 300 MHz Parts)
Ref
PLL_ CFG
[0:4]
(10)(13)
266 MHz Part
(9)
300 MHz Part
(9)
Multipliers
PCI Clock
Input (PCI_
SYNC_IN)
Range
(1)
(MHz)
Periph
Logic/
Mem Bus
Clock
Range
(MHz)
CPU Clock
Range
(MHz)
PCI Clock
Input
(PCI_
SYNC_IN)
Range
(1)
(MHz)
Periph
Logic/Mem
Bus Clock
Range
(MHz)
CPU
Clock
Range
(MHz)
PCI to
Mem
(Mem
VCO)
Mem to
CPU
(CPU
VCO)
0
00000
(12)
25 – 35
(5)(16)
75 – 105
188 – 263
25 – 40
(5)
75 – 120
188 – 300
3
(2)
2.5
(2)
1
00001
(12)
25 – 29
(5)
75 – 88
225 – 264
25 – 33
(5)
75 – 99
225 – 297
3
(2)
3
(2)
2
00010
(11)
50
(18)
– 59
(5)
50 – 59
225 – 266
50
(18)
–
66
(1)
50 – 66
225 – 297
1
(4)
4.5
(2)
3
00011
(11)(14)
50
(4)
– 66
(1)
50 – 66
100 – 133
50
(4)
– 66
(1)
50 – 66
100 – 133
1 (Bypass)
2
(4)
4
00100
(12)
25 – 46
(4)
50 – 92
100 – 184
25 – 46
(4)
50 – 92
100 – 184
2
(4)
2
(4)
5
00101
Reserved
Reserved
Note
(20)
6
00110
(15)
Bypass
Bypass
Bypass
7
00111
(14)
60
(6)
– 66
(1)
60 – 66
180 – 198
60
(6)
– 66
(1)
60 – 66
180 – 198
1 (Bypass)
3
(2)
8
01000
(12)
60
(6)
– 66
(1)
60 – 66
180 – 198
60
(6)
– 66
(1)
60 – 66
180 – 198
1
(4)
3
(2)
9
01001
(19)
45
(6)
– 66
(1)
90 – 132
180 – 264
45
(6)
– 66
(1)
90 – 132
180 – 264
2
(2)
2
(2)
A
01010
(12)
25 – 29
(5)
50 – 58
225 – 261
25 – 33
(5)
50 – 66
225 – 297
2
(4)
4.5
(2)
B
01011
(19)
45
(3)
– 59
(5)
68 – 88
204 – 264
45
(3)
– 66
(1)
68 – 99
204 – 297
1.5
(2)
3
(2)
C
01100
(12)
36
(6)
– 46
(4)
72 – 92
180 – 230
36
(6)
– 46
(4)
72 – 92
180 – 230
2
(4)
2.5
(2)
D
01101
(19)
45
(3)
– 50
(5)
68 – 75
238 – 263
45
(3)
– 57
(5)
68 – 85
238 – 298
1.5
(2)
3.5
(2)
E
01110
(12)
30
(6)
– 44
(5)
60 – 88
180 – 264
30
(6)
– 46
(4)
60 – 92
180 – 276
2
(4)
3
(2)
F
01111
(19)
25
(5)
75
263
25 – 28
(5)
75 – 85
263 – 298
3
(2)
3.5
(2)
10
10000
(12)
30
(6)
–
44
(2)(5)
60 – 132
180 – 264
30
(6)
– 44
(2)
60 – 132
180 – 264
3
(2)
2
(2)
11
10001
(19)
25 – 26
(5)
100 – 106
250 – 266
25 – 29
(2)
100 – 116
250 – 290
4
(2)
2.5
(2)
12
10010
(12)
60
(6)
– 66
(1)
90 – 99
180 – 198
60
(6)
– 66
(1)
90 – 99
180 – 198
1.5
(2)
2
(2)
13
10011
(19)
Not Available
25
(2)
100
300
4
(2)
3
(2)
14
10100
(12)
26
(6)
– 38
(5)
52 – 76
182 – 266
26
(6)
– 42
(5)
52 – 84
182 – 294
2
(4)
3.5
(2)
15
10101
(19)
Not Available
27
(3)
– 30
(5)
68 – 75
272 – 300
2.5
(2)
4
(2)
16
10110
(12)
25 – 33
(5)
50 – 66
200 – 264
25 – 37
(5)
50 – 74
200 – 296
2
(4)
4
(2)
17
10111
(19)
25 – 33
(5)
100 – 132
200 – 264
25 – 33
(2)
100 – 132
200 – 264
4
(2)
2
(2)
18
11000
(12)
27
(3)
– 35
(5)
68 – 88
204 – 264
27
(3)
– 40
(5)
68 – 100
204 – 300
2.5
(2)
3
(2)
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