參數(shù)資料
型號： MPC8377EVRALGA
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
封裝： 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件頁數(shù)： 43/124頁
文件大?。?/td> 1462K
代理商： MPC8377EVRALGA
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
25
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
8.2.1.2
MII Receive AC Timing Specifications
Table 26 provides the MII receive AC timing specifications.
Figure 8 provides the AC test load for eTSEC.
Figure 8. eTSEC AC Test Load
Table 26. MII Receive AC Timing Specifications
At recommended operating conditions with LVDD of 3.3 V ± 5%.
Parameter
Symbol 1
1
The symbols used for timing specifications herein follow the pattern of 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, tMRDVKH symbolizes MII receive
timing (MR) with respect to the time data input signals (D) reach the valid state (V) relative to the tMRX clock reference (K) going
to the high (H) state or setup time. Also, tMRDXKL symbolizes MII receive timing (GR) with respect to the time data input signals
(D) went invalid (X) relative to the tMRX clock reference (K) going to the low (L) state 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 tMRX represents the MII (M) receive (RX) clock. For rise and fall times, the latter convention is used with the
appropriate letter: R (rise) or F (fall).
Min
Typical
Max
Unit
Input low voltage
VIL
——
0.7
V
Input high voltage
VIH
1.9
—
V
RX_CLK clock period 10 Mbps
tMRX
—
400
—
ns
RX_CLK clock period 100 Mbps
tMRX
—40
—
ns
RX_CLK duty cycle
tMRXH/tMRX
35
—
65
%
RXD[3:0], RX_DV, RX_ER setup time to RX_CLK
tMRDVKH
10.0
—
ns
RXD[3:0], RX_DV, RX_ER hold time to RX_CLK
tMRDXKH
10.0
—
ns
RX_CLK clock rise (20%-80%)
tMRXR
1.0
—
4.0
ns
RX_CLK clock fall time (80%-20%)
tMRXF
1.0
—
4.0
ns
Note:
Output
Z0 = 50 Ω
LVDD/2
RL = 50 Ω
相關PDF資料
PDF描述
MPC8377EVRANGA 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
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相關代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8377EVRANDA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
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