參數(shù)資料
型號: MC8640DHX1250HE
廠商: Freescale Semiconductor
文件頁數(shù): 53/130頁
文件大?。?/td> 0K
描述: IC DUAL CORE PROCESSOR 1023-CBGA
標準包裝: 1
系列: MPC86xx
處理器類型: 32-位 MPC86xx PowerPC
速度: 1.25GHz
電壓: 1.05V
安裝類型: 表面貼裝
封裝/外殼: 1023-BCBGA,F(xiàn)CCBGA
供應商設備封裝: 1023-FCCBGA(33x33)
包裝: 托盤
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
29
Ethernet: Enhanced Three-Speed Ethernet (eTSEC), MII Management
Timing diagrams for FIFO appear in Figure 8 and Figure 9.
.
Figure 8. FIFO Transmit AC Timing Diagram
Figure 9. FIFO Receive AC Timing Diagram
8.2.2
GMII AC Timing Specifications
This section describes the GMII transmit and receive AC timing specifications.
8.2.2.1
GMII Transmit AC Timing Specifications
Table 28 provides the GMII transmit AC timing specifications.
1 ±100 ppm tolerance on RX_CLK frequency
Table 28. GMII Transmit AC Timing Specifications
At recommended operating conditions with L/TVDD of 3.3 V ± 5% and 2.5 V ± 5%.
Parameter
Symbol 1
Min
Typ
Max
Unit
GMII data TXD[7:0], TX_ER, TX_EN setup time
tGTKHDV
2.5
ns
GTX_CLK to GMII data TXD[7:0], TX_ER, TX_EN delay
tGTKHDX
0.5
5.0
ns
GTX_CLK data clock rise time (20%–80%)
tGTXR
2
——
1.0
ns
tFIT
tFITH
tFITF
tFITDX
TXD[7:0]
TX_EN
GTX_CLK
TX_ER
tFITDV
tFITR
tFIR
tFIRH
tFIRF
tFIRR
RX_CLK
RXD[7:0]
RX_DV
RX_ER
valid data
tFIRDX
tFIRDV
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