MPC8377EWLANB Freescale Semiconductor, MPC8377EWLANB Datasheet - Page 28
MPC8377EWLANB
Manufacturer Part Number
MPC8377EWLANB
Description
ACCESS POINT/ROUTER MPC8377
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8377EVRAGD.pdf
(126 pages)
Specifications of MPC8377EWLANB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
Figure 11
8.2.3
This section describes the RMII transmit and receive AC timing specifications.
8.2.3.1
The RMII transmit AC timing specifications are in
At recommended operating conditions with LV
28
REF_CLK clock period
REF_CLK duty cycle
REF_CLK peak-to-peak jitter
Rise time REF_CLK (20%–80%)
(At Transmitter)
shows the RGMII and RTBI AC timing and multiplexing diagrams.
RXD[8:5][3:0]
RXD[7:4][3:0]
TXD[8:5][3:0]
TXD[7:4][3:0]
RMII AC Timing Specifications
GTX_CLK
RMII Transmit AC Timing Specifications
(At PHY)
(At PHY)
RX_CLK
RX_CTL
TX_CLK
TX_CTL
Parameter
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 4
Figure 11. RGMII and RTBI AC Timing and Multiplexing Diagrams
Table 29. RMII Transmit AC Timing Specifications
DD
RXD[3:0]
TXD[3:0]
RXD[4]
TXD[4]
TXEN
RXDV
of 3.3 V ± 5%.
RXD[8:5]
RXD[7:4]
TXD[8:5]
TXD[7:4]
RXERR
TXERR
RXD[9]
TXD[9]
Symbol
Table
t
t
t
RMTH
RMTR
t
RMTJ
RMT
29.
1
t
t
SKRGT
SKRGT
t
RGTH
15.0
Min
1.0
35
—
Typical
20.0
t
RGT
50
—
—
Freescale Semiconductor
t
t
SKRGT
SKRGT
Max
25.0
250
2.0
65
Unit
ns
ps
ns
%
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