参数资料
型号: MC8610PX800GZ
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: MICROPROCESSOR, PBGA783
封装: 29 X 29 MM, PLASTIC, FCBGA-783
文件页数: 73/96页
文件大小: 1237K
代理商: MC8610PX800GZ
Hardware Design Considerations
MPC8610 Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
75
3.1.3
e600 Core to MPX/Platform Clock PLL Ratio
The clock ratio between the e600 core and the platform clock is determined by the binary value of LBCTL, LALE,
LGPL2/LOE/LFRE, DIU_LD4 (cfg_core_pll[0:3]–reset config) signals at power up. Table 58 describes the supported ratios.
Note that cfg_core_speed must be pulled low if the core frequency is 800 MHz or below.
3.1.4
Frequency Options
3.1.4.1
SYSCLK and Platform Frequency Options
Table 59 shows the expected frequency options for SYSCLK and platform frequencies.
Table 58. e600 Core/Platform Clock Ratios
Binary Value of
LBCTL, LALE,
LGPL2/LOE/LFRE,
DIU_LD4 Signals
e600 core: MPX/Platform Ratio
1000
2:1
1010
2.5:1
1100
3:1
1110
3.5:1
0000
4:1
0010
4.5:1
All Others
Reserved
Table 59. SYSCLK and Platform Frequency Options
Platform:
SYSCLK
Ratio
SYSCLK (MHz)
33.33
66.66
83.33
100.00
111.11
133.33
Platform/MPX Frequency (MHz)1
1 Platform/MPX Frequency values are shown rounded down to the nearest
whole number (decimal place accuracy removed)
3:1
333
400
4:1
333
400
533
5:1
333
500
6:1
400
500
8:1
533
10:1
333
12:1
400
16:1
533
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