MPC8572CLPXARLD FREESCALE [Freescale Semiconductor, Inc], MPC8572CLPXARLD Datasheet - Page 40

• Manufacturer Part Number: MPC8572CLPXARLD
• Description: MPC8572E PowerQUICC III Integrated Processor Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
Figure 18
8.2.7
This section describes the RMII transmit and receive AC timing specifications.
8.2.7.1
Table 34
40
At recommended operating conditions with LV
TSECn_TX_CLK clock period
TSECn_TX_CLK duty cycle
TSECn_TX_CLK peak-to-peak jitter
Rise time TSECn_TX_CLK (20%–80%)
Fall time TSECn_TX_CLK (80%–20%)
shows the RMII transmit AC timing specifications.
(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
RMII Transmit AC Timing Specifications
GTX_CLK
Parameter/Condition
(At PHY)
(At PHY)
RX_CLK
RX_CTL
TX_CLK
TX_CTL
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4
Figure 18. RGMII and RTBI AC Timing and Multiplexing Diagrams
Table 34. RMII Transmit AC Timing Specifications
DD
RXD[3:0]
TXD[3:0]
RXD[4]
TXD[4]
/TV
TXEN
RXDV
DD
of 2.5/ 3.3 V ± 5%.
RXD[8:5]
RXD[7:4]
TXD[8:5]
TXD[7:4]
RXERR
TXERR
RXD[9]
TXD[9]
Symbol
t
t
t
t
RMTH
RMTR
t
RMTF
RMTJ
RMT
1
t
t
SKRGT
SKRGT
t
RGTH
15.0
Min
1.0
1.0
35
—
20.0
Typ
50
—
—
—
t
RGT
Freescale Semiconductor
Max
25.0
t
t
250
2.0
2.0
SKRGT
SKRGT
65
Unit
ns
ps
ns
ns
%