參數(shù)資料
型號(hào): MPC8533EVTAQG
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 33/112頁(yè)
文件大?。?/td> 0K
描述: MPU POWERQUICC 783-PBGA
標(biāo)準(zhǔn)包裝: 36
系列: MPC85xx
處理器類(lèi)型: 32-位 MPC85xx PowerQUICC III
速度: 1.0GHz
電壓: 0.95 V ~ 1.05 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 783-BBGA,F(xiàn)CBGA
供應(yīng)商設(shè)備封裝: 783-FCPBGA(29x29)
包裝: 托盤(pán)
MPC8533E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 6
Freescale Semiconductor
27
Enhanced Three-Speed Ethernet (eTSEC), MII Management
Figure 9 shows the GMII transmit AC timing diagram.
Figure 9. GMII Transmit AC Timing Diagram
8.3.2.2
GMII Receive AC Timing Specifications
Table 26 provides the GMII receive AC timing specifications.
GTX_CLK data clock fall time (80%-20%)
tGTXF
——
1.0
ns
Notes:
1. The symbols used for timing specifications follow the pattern t(first two letters of functional block)(signal)(state)(reference)(state) for inputs
and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tGTKHDV symbolizes GMII transmit timing
(GT) with respect to the tGTX clock reference (K) going to the high state (H) relative to the time date input signals (D) reaching
the valid state (V) to state or setup time. Also, tGTKHDX symbolizes GMII transmit timing (GT) with respect to the tGTX clock
reference (K) going to the high state (H) relative to the time date input signals (D) going invalid (X) or hold time. Note that, in
general, the clock reference symbol representation is based on three letters representing the clock of a particular functional.
For example, the subscript of tGTX represents the GMII(G) transmit (TX) clock. For rise and fall times, the latter convention
is used with the appropriate letter: R (rise) or F (fall).
2. Data valid tGTKHDV to GTX_CLK Min setup time is a function of clock period and max hold time (Min setup = cycle time – Max
delay).
Table 26. GMII Receive AC Timing Specifications
At recommended operating conditions with L/TVDD of 3.3 V ± 5% or 2.5 V ± 5%
Parameter/Condition
Symbol1
Min
Typ
Max
Unit
Notes
RX_CLK clock period
tGRX
8.0
—ns—
RX_CLK duty cycle
tGRXH/tGRX
35
65
%
RXD[7:0], RX_DV, RX_ER setup time to RX_CLK
tGRDVKH
2.0
—ns—
RX_CLK to RXD[7:0], RX_DV, RX_ER hold time
tGRDXKH
0.5
—ns—
RX_CLK clock rise (20%–80%)
tGRXR
——
1.0
ns
Table 25. GMII Transmit AC Timing Specifications (continued)
At recommended operating conditions with L/TVDD of 3.3 V ± 5% or 2.5 V ± 5%
Parameter/Condition
Symbol1
Min
Typ
Max
Unit
Notes
GTX_CLK
TXD[7:0]
tGTKHDX
tGTX
tGTXH
tGTXR
tGTXF
tGTKHDV
TX_EN
TX_ER
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