mpc8560vt667jb Freescale Semiconductor, Inc, mpc8560vt667jb Datasheet - Page 24

• Manufacturer Part Number: mpc8560vt667jb
• Description: Mpc8560 Powerquicc Iii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Ethernet: Three-Speed, MII Management
7.2 GMII, MII, TBI, RGMII, and RTBI AC Timing Specifications
The AC timing specifications for GMII, MII, TBI, RGMII, and RTBI are presented in this section.
7.2.1 GMII AC Timing Specifications
This section describes the GMII transmit and receive AC timing specifications.
7.2.1.1
Table 21
24
At recommended operating conditions with LV
Supply voltage 2.5 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.Note that the symbol V
GTX_CLK clock period
GTX_CLK duty cycle
GMII data TXD[7:0], TX_ER, TX_EN setup time
GTX_CLK to GMII data TXD[7:0], TX_ER, TX_EN delay
provides the GMII transmit AC timing specifications.
GMII Transmit AC Timing Specifications
Parameter/Condition
Parameters
Table 20. GMII, MII, RGMII, RTBI, and TBI DC Electrical Characteristics
IN
IN
1
DD
1
DD
= GND)
= LV
IN
MPC8560 Integrated Processor Hardware Specifications, Rev. 4.2
= Min, I
, in this case, represents the LV
= Min, I
DD
Table 21. GMII Transmit AC Timing Specifications
)
OL
OH
= 1.0 mA)
= –1.0 mA)
DD
of 3.3 V ± 5%, or LV
Symbol
LV
V
V
V
V
I
I
OH
IH
IN
OL
IL
IH
DD
IL
DD
symbol referenced in
t
=2.5V ± 5%.
Symbol
GTXH
t
t
GTKHDX
GTKHDV
t
GTX
/t
GTX
1
3
GND – 0.3
2.37
2.00
1.70
–0.3
Min
–15
—
Min
2.5
0.5
40
—
Table
1and
LV
LV
Typ
8.0
DD
DD
—
—
—
Max
2.63
0.40
0.70
Table
10
—
+ 0.3
+ 0.3
Freescale Semiconductor
2.
Max
5.0
60
—
—
Unit
μA
μA
V
V
V
V
V
Unit
ns
ns
ns
%