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MPC8640DEC bảng dữ liệu(PDF) 111 Page - Freescale Semiconductor, Inc

tên linh kiện MPC8640DEC
Giải thích chi tiết về linh kiện  Integrated Host Processor Hardware Specifications
PDF  140 Pages
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nhà sản xuất  FREESCALE [Freescale Semiconductor, Inc]
Trang chủ  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8640DEC bảng dữ liệu(HTML) 111 Page - Freescale Semiconductor, Inc

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MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 1
Freescale Semiconductor
111
Clocking
18.3
e600 to MPX clock PLL Ratio
Table 68 describes the clock ratio between the platform and the e600 core clock. This ratio is determined
by the binary value of LDP[0:3], LA[27](cfg_core_pll[0:4] - reset config name) at power up, as shown in
Table 68.
18.4
Frequency Options
18.4.1
SYSCLK to Platform Frequency Options
Table 69 shows some SYSCLK frequencies and the expected MPX frequency values based on the MPX
clock to SYSCLK ratio. Note that frequencies between 400 MHz and 500 MHz are NOT supported on the
0010
2:1
0011
3:1
0100
4:1
0101
5:1
0110
6:1
0111
Reserved
1000
8:1
1001
Reserved
Table 68. e600 Core to MPX Clock Ratio
Binary Value of
LDP[0:3], LA[27] Signals
e600 core: MPX Clock Ratio
01000
2:1
01100
2.5:1
10000
3:1
11100
Reserved
10100
Reserved
01110
Reserved
Table 67. MPX:SYSCLK Ratio
Binary Value of
LA[28:31]
Signals
MPX:SYSCLK Ratio



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