mpc8349ea Freescale Semiconductor, Inc, mpc8349ea Datasheet - Page 30

• Manufacturer Part Number: mpc8349ea
• Description: Mpc8349ea Powerquicc
• Manufacturer: Freescale Semiconductor, Inc

Ethernet: Three-Speed Ethernet, MII Management
Figure 15
8.3
The electrical characteristics specified here apply to the MII management interface signals management
data input/output (MDIO) and management data clock (MDC). The electrical characteristics for GMII,
RGMII, TBI and RTBI are specified in
(TSEC)—GMII/MII/TBI/RGMII/RTBI Electrical
8.3.1
The MDC and MDIO are defined to operate at a supply voltage of 2.5 or 3.3 V. The DC electrical
characteristics for MDIO and MDC are provided in
30
Supply voltage (2.5 V)
Output high voltage
Output low voltage
Input high voltage
Input low voltage
(At Transmitter)
Ethernet Management Interface Electrical Characteristics
shows the RBMII and RTBI AC timing and multiplexing diagrams.
Parameter
MPC8349EA PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10
RXD[8:5][3:0]
RXD[7:4][3:0]
TXD[8:5][3:0]
TXD[7:4][3:0]
MII Management DC Electrical Characteristics
GTX_CLK
(At PHY)
(At PHY)
RX_CLK
RX_CTL
TX_CTL
TX_CLK
Table 31. MII Management DC Electrical Characteristics Powered at 2.5 V
Figure 15. RGMII and RTBI AC Timing and Multiplexing Diagrams
Symbol
LV
V
V
V
V
RXD[3:0]
TXD[3:0]
OH
OL
IH
RXD[4]
DD
IL
TXD[4]
RXDV
TXEN
Section 8.1, “Three-Speed Ethernet Controller
I
OH
I
OL
RXD[8:5]
RXD[7:4]
TXD[8:5]
TXD[7:4]
TXERR
RXERR
TXD[9]
RXD[9]
= –1.0 mA
= 1.0 mA
—
—
Characteristics.”
Conditions
Table 31
—
LV
LV
LV
LV
DD
DD
DD
DD
t
t
SKRGT
SKRGT
and
= Min
= Min
= Min
= Min
t
RGTH
Table
GND – 0.3
32.
2.37
2.00
–0.3
Min
1.7
t
RGT
Freescale Semiconductor
LV
t
t
DD
SKRGT
SKRGT
Max
2.63
0.40
0.70
—
+ 0.3
Unit
V
V
V
V
V