參數(shù)資料
型號: MPC8264AZUPJDB
廠商: Freescale Semiconductor
文件頁數(shù): 20/50頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC II 480-TBGA
標(biāo)準(zhǔn)包裝: 21
系列: MPC82xx
處理器類型: 32-位 MPC82xx PowerQUICC II
速度: 300MHz
電壓: 2V
安裝類型: 表面貼裝
封裝/外殼: 480-LBGA
供應(yīng)商設(shè)備封裝: 408-TBGA(37.5x37.5)
包裝: 托盤
MPC8260A PowerQUICC II Integrated Communications Processor Hardware Specifications, Rev. 2.0
Freescale Semiconductor
27
Clock Configuration Modes
3.2.1
PCI Host Mode
The frequencies listed in Table 16 and Table 17 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 17 describes all possible clock configurations when using the MPC8265’s or the MPC8266’s
internal PCI bridge in host mode.
Table 16. Clock Default Configurations in PCI Host Mode (MODCK_HI = 0000)
MODCK[1–3]1
1 Assumes MODCK_HI = 0000.
Input Clock
Frequency
(Bus)
CPM
Multiplication
Factor
CPM
Frequency
Core
Multiplication
Factor
Core
Frequency
PCI Division
Factor2
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 15.
PCI
Frequency2
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 17. Clock Configuration Modes in PCI Host Mode
MODCK_H –
MODCK[1–3]
Input Clock
Frequency1
(Bus)
CPM
Multiplication
Factor
CPM
Frequency
Core
Multiplication
Factor
Core
Frequency
PCI Division
Factor2
PCI
Frequency2
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_0003
33 MHz
5
166 MHz
5
166 MHz
5
33 MHz
0011_0013
33 MHz
5
166 MHz
6
200 MHz
5
33 MHz
0011_0103
33 MHz
5
166 MHz
7
233 MHz
5
33 MHz
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