參數(shù)資料
型號(hào)： MC8641DHX1500GB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： MICROPROCESSOR, CBGA1023
封裝： 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
文件頁數(shù)： 15/140頁
文件大小： 1484K
代理商： MC8641DHX1500GB
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 0
Freescale Semiconductor
111
Clocking
18.2
MPX to SYSCLK PLL Ratio
The MPX clock is the clock that drives the MPX bus, and is also called the platform clock. The frequency
of the MPX is set using the following reset signals, as shown in Table 68:
SYSCLK input signal
Binary value on LA[28:31] at power up
Note that there is no default for this PLL ratio; these signals must be pulled to the desired values. Also note
that the DDR data rate is the determining factor in selecting the MPX bus frequency, since the MPX
frequency must equal the DDR data rate.
Table 66. Platform/MPX bus Clocking Specifications
Characteristic
Maximum Processor Core
Frequency
Unit
Notes
1000, 1250, 1333, 1500MHz
Min
Max
Platform/MPX bus clock frequency
400
500-600
MHz
1, 2
Notes:
1. Caution: The MPX clock to SYSCLK ratio and e600 core to MPX clock ratio settings must be
chosen such that the resulting SYSCLK frequency, e600 (core) frequency, and MPX clock
frequency do not exceed their respective maximum or minimum operating frequencies. Refer to
ratio settings.
2. Platform/MPX frequencies between 400 and 500 MHz are not supported.
Table 67. Local Bus Clocking Specifications
Characteristic
Maximum Processor Core
Frequency
Unit
Notes
1000, 1250, 1333, 1500MHz
Min
Max
Local bus clock speed (for Local Bus
Controller)
25
133
MHz
1
Notes:
1. The Local bus clock speed on LCLK[0:2] is determined by MPX clock divided by the Local Bus
PLL ratio programmed in LCRR[CLKDIV]. See the reference manual for the MPC8641D for more
information on this.
Table 68. MPX:SYSCLK Ratio
Binary Value of
LA[28:31]
Signals
MPX:SYSCLK Ratio
0000
Reserved
0001
Reserved
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MC8641DHX1500H 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
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MC8641DHX1500KB 功能描述:微處理器 - MPU G8 REV 2.0 1.1V 105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC8641DHX1500KC 功能描述:微處理器 - MPU G8 REV 2.1 1.1V 105C RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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