參數(shù)資料
型號(hào): MPC8540PXAPDB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 833 MHz, MICROPROCESSOR, PBGA783
封裝: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件頁數(shù): 33/104頁
文件大小: 2133K
代理商: MPC8540PXAPDB
MPC8540 Integrated Processor Hardware Specifications, Rev. 3.1
34
Freescale Semiconductor
Figure 15 shows the MII transmit AC timing diagram.
Figure 15. MII Transmit AC Timing Diagram
8.3.2.2 MII Receive AC Timing Specifications
Table 31 provides the MII receive AC timing specifications.
TX_CLK clock period 10 Mbps
tMTX
400
ns
TX_CLK clock period 100 Mbps
tMTX
40
ns
TX_CLK duty cycle
tMTXH/tMTX
35
65
%
TX_Clk to MII data TXD[3:0], TX_ER, TX_EN delay
tMTKHDX
1
5
15
ns
TX_CLK data clock rise (20%-80%)
tMTXR
2
1.0
4.0
ns
TX_CLK data clock fall (80%-20%)
tMTXF
2
1.0
4.0
ns
Note:
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,
tMTKHDX symbolizes MII transmit timing (MT) from the time tMTX clock reference (K) going high (H) until data outputs
(D) are invalid (X). Note that, in general, the clock reference symbol representation is based on two to three letters
representing the clock of a particular functional. For example, the subscript of tMTX represents the MII (M) transmit
(TX) clock. For rise and fall times, the latter convention is used with the appropriate letter: R (rise) or F (fall).
2.Guaranteed by design.
Table 31. MII Receive AC Timing Specifications
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
Input low voltage
VIL
0.7
V
Input high voltage
VIH
1.9
V
Table 30. MII Transmit AC Timing Specifications (continued)
At recommended operating conditions with OVDD of 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
PMA_RX_CLK1
RXD[9:0]
tTRX
tTRXH
tTRXR
tTRXF
tTRDVKH
PMA_RX_CLK0
tTRDXKH
tTRDVKH
tTRDXKH
tTRXL
tSKTRX
tTRXH
Valid Data
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