參數(shù)資料
型號: MPC8379E-RDB
廠商: Freescale Semiconductor
文件頁數(shù): 39/117頁
文件大小: 0K
描述: BOARD REFERENCE FOR MPC837
標準包裝: 1
系列: PowerQUICC II™ PRO
類型: MPU
適用于相關(guān)產(chǎn)品: MPC8379
所含物品:
MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
28
Freescale Semiconductor
This figure shows the RGMII and RTBI AC timing and multiplexing diagrams.
Figure 11. RGMII and RTBI AC Timing and Multiplexing Diagrams
8.2.3
RMII AC Timing Specifications
This section describes the RMII transmit and receive AC timing specifications.
8.2.3.1
RMII Transmit AC Timing Specifications
This table shows the RMII transmit AC timing specifications.
Table 29. RMII Transmit AC Timing Specifications
At recommended operating conditions with LVDD of 3.3 V ± 5%.
Parameter
Symbol1
Min
Typical
Max
Unit
REF_CLK clock period
tRMT
15.020.025.0
ns
REF_CLK duty cycle
tRMTH
35
50
65
%
REF_CLK peak-to-peak jitter
tRMTJ
250
ps
Rise time REF_CLK (20%–80%)
tRMTR
1.0
2.0
ns
GTX_CLK
tRGT
tRGTH
tSKRGT_TX
TX_CTL
TXD[8:5]
TXD[7:4]
TXD[9]
TXERR
TXD[4]
TXEN
TXD[3:0]
(At Transmitter)
TXD[8:5][3:0]
TXD[7:4][3:0]
TX_CLK
(At PHY)
RX_CTL
RXD[8:5]
RXD[7:4]
RXD[9]
RXERR
RXD[4]
RXDV
RXD[3:0]
RXD[8:5][3:0]
RXD[7:4][3:0]
RX_CLK
(At PHY)
tSKRGT_RX
tSKRGT_TX
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