參數(shù)資料
型號: MPC8568EVTAUJJ
廠商: Freescale Semiconductor
文件頁數(shù): 69/139頁
文件大?。?/td> 0K
描述: MPU POWERQUICC III 1023-PBGA
標(biāo)準(zhǔn)包裝: 24
系列: MPC85xx
處理器類型: 32-位 MPC85xx PowerQUICC III
速度: 1.333GHz
電壓: 1.1V
安裝類型: 表面貼裝
封裝/外殼: 1023-BBGA,F(xiàn)CBGA
供應(yīng)商設(shè)備封裝: 1023-FCPBGA(33x33)
包裝: 托盤
MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
Freescale Semiconductor
35
Ethernet Interface and MII Management
8.2.4.1
TBI Transmit AC Timing Specifications
Table 31 provides the TBI transmit AC timing specifications.
Figure 15 shows the TBI transmit AC timing diagram.
Figure 15. TBI Transmit AC Timing Diagram
Table 31. TBI Transmit AC Timing Specifications
At recommended operating conditions with L/TVDD of 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
GTX_CLK clock period
tTTX
—8.0
ns
GTX_CLK duty cycle
tTTXH/tTTX
47
53
%
TCG[9:0] setup time GTX_CLK going high
tTTKHDV
2.0
ns
TCG[9:0] hold time from GTX_CLK going high
tTTKHDX
3
1.0
ns
GTX_CLK rise (20%–80%)
tTTXR
2
—1.0
2.0
ns
GTX_CLK fall time (80%–20%)
tTTXF
2
—1.0
2.0
ns
EC_GTX_CLK125 clock rise time (20%-80%)
tG125R
—1.0
2.0
ns
EC_GTX_CLK125 clock fall time (80%-20%)
tG125F
—1.0
2.0
ns
EC_GTX_CLK125 duty cycle
tG125H/tG125
45
55
ns
Notes:
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,
tTTKHDV symbolizes the TBI transmit timing (TT) with respect to the time from tTTX (K) going high (H) until the
referenced data signals (D) reach the valid state (V) or setup time. Also, tTTKHDX symbolizes the TBI transmit timing
(TT) with respect to the time from tTTX (K) going high (H) until the referenced data signals (D) reach the invalid state
(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 tTTX represents the TBI (T) 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.
GTX_CLK
TCG[9:0]
tTTXR
tTTX
tTTXH
tTTXR
tTTXF
tTTKHDV
tTTKHDX
tTTXF
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