KMPC8548ECVTAUJC Freescale Semiconductor, KMPC8548ECVTAUJC Datasheet - Page 37

• Manufacturer Part Number: KMPC8548ECVTAUJC
• Manufacturer: Freescale Semiconductor

Specifications of KMPC8548ECVTAUJC

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Figure 17
8.2.7
This section describes the RMII transmit and receive AC timing specifications.
8.2.7.1
The RMII transmit AC timing specifications are in
Freescale Semiconductor
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%)
(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
(At PHY)
(At PHY)
RX_CTL
RX_CLK
TX_CLK
TX_CTL
Parameter/Condition
MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 7
Figure 17. RGMII and RTBI AC Timing and Multiplexing Diagrams
Table 34. RMII Transmit AC Timing Specifications
RXD[3:0]
TXD[3:0]
RXD[4]
TXD[4]
TXEN
RXDV
RXD[8:5]
RXD[7:4]
TXD[8:5]
TXD[7:4]
RXERR
TXERR
RXD[9]
TXD[9]
Table
Symbol
t
t
t
t
t
RMTH
RMTR
RMTJ
RMTF
RMT
34.
t
t
1
SKRGT
SKRGT
t
RGTH
15.0
Min
1.0
1.0
35
—
Enhanced Three-Speed Ethernet (eTSEC)
t
RGT
20.0
Typ
50
—
—
—
t
t
SKRGT
SKRGT
Max
25.0
250
2.0
2.0
65
Unit
ns
ps
ns
ns
%
37