參數(shù)資料
型號: MPC8572ELPXARLD
廠商: Freescale Semiconductor
文件頁數(shù): 75/138頁
文件大小: 0K
描述: MPU POWERQUICC III 1023-PBGA
標(biāo)準(zhǔn)包裝: 1
系列: MPC85xx
處理器類型: 32-位 MPC85xx PowerQUICC III
速度: 1.067GHz
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
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
41
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
Figure 19 shows the RMII transmit AC timing diagram.
Figure 19. RMII Transmit AC Timing Diagram
8.2.7.2
RMII Receive AC Timing Specifications
Table 36 shows the RMII receive AC timing specifications.
TSECn_TX_CLK to RMII data TXD[1:0], TX_EN delay
tRMTDX
1.0
10.0
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) for 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).
Table 36. RMII Receive AC Timing Specifications
At recommended operating conditions with LVDD/TVDD of 2.5/ 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
TSECn_TX_CLK clock period
tRMR
15.0
20.0
25.0
ns
TSECn_TX_CLK duty cycle
tRMRH
35
50
65
%
TSECn_TX_CLK peak-to-peak jitter
tRMRJ
——
250
ps
Rise time TSECn_TX_CLK (20%–80%)
tRMRR
1.0
2.0
ns
Fall time TSECn_TX_CLK (80%–20%)
tRMRF
1.0
2.0
ns
RXD[1:0], CRS_DV, RX_ER setup time to
TSECn_TX_CLK rising edge
tRMRDV
4.0
ns
Table 35. RMII Transmit AC Timing Specifications (continued)
At recommended operating conditions with LVDD/TVDD of 2.5/ 3.3 V ± 5%.
Parameter/Condition
Symbol 1
Min
Typ
Max
Unit
TSEC
n_TX_CLK
TXD[1:0]
tRMTDX
tRMT
tRMTH
tRMTR
tRMTF
TX_EN
TX_ER
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