參數(shù)資料
型號: MPC8572VTATLE
廠商: Freescale Semiconductor
文件頁數(shù): 49/138頁
文件大?。?/td> 0K
描述: MPU POWERQUICC III 1023FCPBGA
標(biāo)準(zhǔn)包裝: 1
系列: MPC85xx
處理器類型: 32-位 MPC85xx PowerQUICC III
速度: 1.2GHz
電壓: 1.1V
安裝類型: 表面貼裝
封裝/外殼: 1023-BBGA,F(xiàn)CBGA
供應(yīng)商設(shè)備封裝: 1023-FCPBGA(33x33)
包裝: 托盤
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
18
Freescale Semiconductor
RESET Initialization
4.5
Platform to eTSEC FIFO Restrictions
Note the following eTSEC FIFO mode maximum speed restrictions based on platform (CCB) frequency.
For FIFO GMII modes (both 8 and 16 bit) and 16-bit encoded FIFO mode:
FIFO TX/RX clock frequency <= platform clock (CCB) frequency/4.2
For example, if the platform (CCB) frequency is 533 MHz, the FIFO TX/RX clock frequency
should be no more than 127 MHz.
For 8-bit encoded FIFO mode:
FIFO TX/RX clock frequency <= platform clock (CCB) frequency/3.2
For example, if the platform (CCB) frequency is 533 MHz, the FIFO TX/RX clock frequency
should be no more than 167 MHz.
4.6
Other Input Clocks
For information on the input clocks of other functional blocks of the platform, such as SerDes and eTSEC,
see the respective sections of this document.
5
RESET Initialization
Table 9 describes the AC electrical specifications for the RESET initialization timing.
Table 9. RESET Initialization Timing Specifications
Parameter/Condition
Min
Max
Unit
Notes
Required assertion time of HRESET
100
μs2
Minimum assertion time for SRESET
3
SYSCLKs
1
PLL config input setup time with stable SYSCLK before HRESET
negation
100
μs—
Input setup time for POR configs (other than PLL config) with respect to
negation of HRESET
4
SYSCLKs
1
Input hold time for all POR configs (including PLL config) with respect to
negation of HRESET
2
SYSCLKs
1
Maximum valid-to-high impedance time for actively driven POR configs
with respect to negation of HRESET
5
SYSCLKs
1
Notes:
1. SYSCLK is the primary clock input for the MPC8572E.
2. Reset assertion timing requirements for DDR3 DRAMs may differ.
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