參數(shù)資料
型號(hào): MPC826XA
廠商: Motorola, Inc.
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 24/48頁
文件大?。?/td> 662K
代理商: MPC826XA
24
MPC826xA (HiP4) Family Hardware Specifications
MOTOROLA
Clock Configuration Modes
1.3.2.1
PCI Host Mode
The frequencies listed in Table 15 and Table 16 are for the purpose of illustration only. Users must select a
mode and input bus frequency so that the resulting configuration does not exceed the frequency rating of the
user’s device.
I
Table 16 describes all possible clock configurations when using the MPC8265 or the MPC8266’s internal
PCI bridge in host mode.
Table 15. Clock Default Configurations in PCI Host Mode (MODCK_HI = 0000)
MODCK[1–3]
1
1
Assumes MODCK_HI = 0000.
2
The frequency depends on the value of PCI_MODCK. If PCI_MODCK is high (logic ‘1’), the PCI frequency is
divided by 2 (33 instead of 66 MHz, etc.) Refer to Table 14.
Input Clock
Frequency
(Bus)
CPM
Multiplication
Factor
CPM
Frequency
Core
Multiplication
Factor
Core
Frequency
PCI Division
Factor
2
PCI
Frequency
2
000
66 MHz
2
133 MHz
2.5
166 MHz
2/4
66/33 MHz
001
66 MHz
2
133 MHz
3
200 MHz
2/4
66/33 MHz
010
66 MHz
2.5
166 MHz
3
200 MHz
3/6
55/28 MHz
011
66 MHz
2.5
166 MHz
3.5
233 MHz
3/6
55/28 MHz
100
66 MHz
2.5
166 MHz
4
266 MHz
3/6
55/28 MHz
101
66 MHz
3
200 MHz
3
200 MHz
3/6
66/33 MHz
110
66 MHz
3
200 MHz
3.5
233 MHz
3/6
66/33 MHz
111
66 MHz
3
200 MHz
4
266 MHz
3/6
66/33 MHz
Table 16. Clock Configuration Modes in PCI Host Mode
MODCK_H –
MODCK[1–3]
Input Clock
Frequency
1
(Bus)
CPM
Multiplication
Factor
CPM
Frequency
Core
Multiplication
Factor
Core
Frequency
PCI Division
Factor
2
PCI
Frequency
2
0001_000
33 MHz
3
100 MHz
5
166 MHz
3/6
33/16 MHz
0001_001
33 MHz
3
100 MHz
6
200 MHz
3/6
33/16 MHz
0001_010
33 MHz
3
100 MHz
7
233 MHz
3/6
33/16 MHz
0001_011
33 MHz
3
100 MHz
8
266 MHz
3/6
33/16 MHz
0010_000
33 MHz
4
133 MHz
5
166 MHz
4/8
33/16 MHz
0010_001
33 MHz
4
133 MHz
6
200 MHz
4/8
33/16 MHz
0010_010
33 MHz
4
133 MHz
7
233 MHz
4/8
33/16 MHz
0010_011
33 MHz
4
133 MHz
8
266 MHz
4/8
33/16 MHz
0011_000
3
33 MHz
5
166 MHz
5
166 MHz
5
33 MHz
0011_001
3
33 MHz
5
166 MHz
6
200 MHz
5
33 MHz
0011_010
3
33 MHz
5
166 MHz
7
233 MHz
5
33 MHz
0011_011
3
33 MHz
5
166 MHz
8
266 MHz
5
33 MHz
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