mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 65

• Manufacturer Part Number: mpc8569e
• Description: Mpc8569e Powerquicc Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

The following figure shows the RGMII and RTBI AC timing and multiplexing diagrams.
2.6.4
Each SGMII port features a 4-wire AC-coupled serial link from the SerDes interface of MPC8569E as shown in
where C
50-Ω output impedance. Each input of the SerDes receiver differential pair features 50-Ω on-die termination to GND. The
reference circuit of the SerDes transmitter and receiver is shown in
2.6.4.1
This section discusses the electrical characteristics for the SGMII interface.
2.6.4.1.1
The characteristics and DC requirements of the separate SerDes reference clock are described in
Requirement for SerDes Reference Clocks.”
Freescale Semiconductor
TX
(At Transmitter)
is the external (on board) AC-coupled capacitor. Each output pin of the SerDes transmitter differential pair features
RXD[8:5][3:0]
RXD[7:4][3:0]
TXD[8:5][3:0]
TXD[7:4][3:0]
(At Receiver)
SGMII Interface Electrical Characteristics
SGMII DC Electrical Characteristics
GTX_CLK
GTX_CLK
DC Requirements for SGMII SD_REF_CLK and SD_REF_CLK
(At PHY)
(At PHY)
RX_CTL
RX_CLK
TX_CLK
TX_CTL
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
Figure 26. RGMII and RTBI AC Timing and Multiplexing Diagrams
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]
Figure
t
t
SKRGT_TX
SKRGT_TX
45.
t
t
RGTH
RGTH
t
t
RGT
RGT
Section 2.9.2.3, “DC Level
t
t
SKRGT_RX
SKRGT_RX
Ethernet Interface
Figure
27,
65