mpc8378 Freescale Semiconductor, Inc, mpc8378 Datasheet - Page 23

• Manufacturer Part Number: mpc8378
• Description: Powerquicc Ii Pro Processor
• Manufacturer: Freescale Semiconductor, Inc

8
This section provides the AC and DC electrical characteristics for the enhanced three-speed Ethernet
controller.
8.1
The electrical characteristics specified here apply to media independent interface (MII), reduced gigabit
media independent interface (RGMII), reduced ten-bit interface (RTBI), reduced media independent
interface (RMII) signals, management data input/output (MDIO) and management data clock (MDC).
The MII and RMII interfaces are defined for 3.3 V, while the RGMII and RTBI interfaces can be operated
at 2.5 V. The RGMII and RTBI interfaces follow the Reduced Gigabit Media-Independent Interface
(RGMII) Specification Version 1.3. The RMII interface follows the RMII Consortium RMII Specification
Version 1.2.
8.1.1
MII and RMII drivers and receivers comply with the DC parametric attributes specified in
Table
defined by JEDEC EIA/JESD8-5.
Freescale Semiconductor
Supply voltage 3.3 V
Output high voltage
(LV
Output low voltage
(LV
Input high voltage
Input low voltage
Input high current
(V
Input low current
(V
Note:
1. LV
IN
IN
LV
DD1
DD1
= LV
= GND)
DD1
DD2
25. The RGMII and RTBI signals in
/LV
/LV
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
DD1
supports eTSEC 1.
supports eTSEC 2.
DD2
DD2
Enhanced Three-Speed Ethernet Controller (eTSEC)
(10/100/1000 Mbps)—MII/RGMII/RTBI/RMII DC Electrical
Characteristics
, V
MII, RMII, RGMII, and RTBI DC Electrical Characteristics
= Min, I
= Min, I
IN
Parameter
= LV
OH
OL
DD2
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 3
= 4.0 mA)
= –4.0 mA)
)
Table 24. MII and RMII DC Electrical Characteristics
Symbol
LV
LV
Table 25
V
V
V
V
I
I
OH
DD1
DD2
IH
OL
IL
IH
IL
are based on a 2.5 V CMOS interface voltage as
GND
–600
3.13
2.40
–0.3
Min
2.0
—
Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
LV
LV
DD1
DD1
/LV
/LV
Max
3.47
0.50
0.90
30
—
DD2
DD2
+ 0.3
+ 0.3
Unit
μA
μA
V
V
V
V
V
Table 24
Notes
—
—
—
—
—
and
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