
MPC8314E PowerQUICC II Pro Processor Hardware Specifications, Rev. 0
Freescale Semiconductor
29
Ethernet: Three-Speed Ethernet, MII Management
Figure 15 shows the RGMII and RTBI AC timing and multiplexing diagrams.
Figure 15. RGMII and RTBI AC Timing and Multiplexing Diagrams
9.3
Ethernet Management Interface Electrical Characteristics
The electrical characteristics specified here apply to MII management interface signals management data
input/output (MDIO) and management data clock (MDC). The electrical characteristics for MII, RMII,
9.3.1
MII Management DC Electrical Characteristics
The MDC and MDIO are defined to operate at a supply voltage of 3.3 V. The DC electrical characteristics
for MDIO and MDC are provided in
Table 30.
Table 30. MII Management DC Electrical Characteristics Powered at 3.3 V
Parameter
Symbol
Conditions
Min
Max
Unit
Supply voltage (3.3 V)
NVDD
—
3.0
3.6
V
Output high voltage
VOH
IOH = –1.0 mA
NVDD = Min
2.10
NVDD + 0.3
V
Output low voltage
VOL
IOL = 1.0 mA
NVDD = Min
VSS
0.50
V
Input high voltage
VIH
——
2.00
—
V
Input low voltage
VIL
———
0.80
V
GTX_CLK
tRGT
tRGTH
tSKRGT
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 Controller)
tSKRGT