參數(shù)資料
型號: MPC8560CPXALFB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783
封裝: 29 X 29 MM, 3.75 MM HEIGHT, 1 MM PITCH, FLIP CHIP, PLASTIC, BGA-783
文件頁數(shù): 33/108頁
文件大?。?/td> 2170K
代理商: MPC8560CPXALFB
MPC8560 Integrated Processor Hardware Specifications, Rev. 3.1
30
Freescale Semiconductor
Ethernet: Three-Speed, MII Management
Figure 11 shows the MII receive AC timing diagram.
Figure 11. MII Receive AC Timing Diagram
7.2.3 TBI AC Timing Specifications
This section describes the TBI transmit and receive AC timing specifications.
RX_CLK clock period 10 Mbps
tMRX
2
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
2
1.0
4.0
ns
RX_CLK clock fall time (80%-20%)
tMRXF
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,
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).
2.Guaranteed by design.
Table 23. MII Receive AC Timing Specifications (continued)
At recommended operating conditions with LVDD of 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
RX_CLK
RXD[3:0]
tMRDXKH
tMRX
tMRXH
tMRXR
tMRXF
RX_DV
RX_ER
tMRDVKH
Valid Data
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