MPC8548E Freescale, MPC8548E Datasheet - Page 26

• Manufacturer Part Number: MPC8548E
• Description: Integrated Processor
• Manufacturer: Freescale

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Enhanced Three-Speed Ethernet (eTSEC)
8
This section provides the AC and DC electrical characteristics for the enhanced three-speed Ethernet
controller. The electrical characteristics for MDIO and MDC are specified in
Management Interface Electrical Characteristics.”
8.1
The electrical characteristics specified here apply to all gigabit media independent interface (GMII), media
independent interface (MII), ten-bit interface (TBI), reduced gigabit media independent interface
(RGMII), reduced ten-bit interface (RTBI), and reduced media independent interface (RMII) signals
except management data input/output (MDIO) and management data clock (MDC). The RGMII and RTBI
interfaces are defined for 2.5 V, while the GMII, MII, and TBI interfaces can be operated at 3.3 or 2.5 V.
The GMII, MII, or TBI interface timing is compliant with the IEEE 802.3. The RGMII and RTBI interfaces
follow the Reduced Gigabit Media-Independent Interface (RGMII) Specification Version 1.3
(12/10/2000). The RMII interface follows the RMII Consortium RMII Specification Version 1.2
(3/20/1998). The electrical characteristics for MDIO and MDC are specified in
Management Interface Electrical Characteristics.”
8.1.1
All GMII, MII, TBI, RGMII, RMII, and RTBI drivers and receivers comply with the DC parametric
attributes specified in
interface voltage as defined by JEDEC EIA/JESD8-5.
26
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
Notes:
1. LV
2. TV
3. The symbol V
DD
DD
Enhanced Three-Speed Ethernet (eTSEC)
supports eTSECs 1 and 2.
supports eTSECs 3 and 4.
Enhanced Three-Speed Ethernet Controller (eTSEC)
(10/100/1Gb Mbps)—GMII/MII/TBI/RGMII/RTBI/RMII Electrical
Characteristics
eTSEC DC Electrical Characteristics
IN
, in this case, represents the LV
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
IN
IN
Parameter
= GND)
DD
= LV
DD
/TV
Table 21. GMII, MII, RMII, and TBI DC Electrical Characteristics
Table 21
/TV
DD
DD
DD
, V
= min, I
IN
= min, I
= TV
and
OL
DD
OH
Table
)
= 4.0 mA)
= –4.0 mA)
IN
22. The RGMII and RTBI signals are based on a 2.5-V CMOS
and TV
Symbol
TV
LV
IN
V
V
V
V
I
I
OH
OL
IH
IL
DD
IH
symbols referenced in
IL
DD
GND
–600
3.13
2.40
–0.3
Min
2.0
—
Table 1
LV
LV
DD
DD
/TV
/TV
Max
3.47
0.50
0.90
40
—
and
Section 9, “Ethernet
DD
DD
Section 9, “Ethernet
Table
+ 0.3
+ 0.3
Freescale Semiconductor
2.
Unit
μA
μA
V
V
V
V
V
Notes
1, 2, 3
1, 2
—
—
—
—
—