mpc8568e Freescale Semiconductor, Inc, mpc8568e Datasheet - Page 28

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mpc8568e

Manufacturer Part Number
mpc8568e
Description
Mpc8568e Powerquicc Iii Processor
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Ethernet Interface and MII Management
8.2
The AC timing specifications for FIFO, GMII, MII, TBI, RGMII, RMII and RTBI are presented in this
section.
8.2.1
The basis for the AC specifications for the eTSEC’s FIFO modes is the double data rate RGMII and RTBI
specifications, since they have similar performance and are described in a source-synchronous fashion like
FIFO modes. However, the FIFO interface provides deliberate skew between the transmitted data and
source clock in GMII fashion.
28
Input high current
(V
Input low current
(V
Notes:
1. LV
2. TV
3. The symbol V
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. LV
2. TV
3. Note that the symbol V
IN
IN
IN
IN
= LV
= GND)
DD
DD
DD
DD
= LV
= GND)
DD
DD
/TV
/TV
supports eTSECs 1 and 2.
supports QE UCC1 and UCC2 ethernet ports.
DD
supports eTSECs 1 and 2.
supports QE UCC1 and UCC2 ethernet ports.
DD
FIFO, GMII, MII, TBI, RGMII, RMII, and RTBI AC Timing
Specifications
DD
DD
, V
MPC8568E/MPC8567E PowerQUICC III™ Integrated Processor Hardware Specifications, Rev. 0
, V
FIFO AC Specifications
IN
Table 24. GMII, MII, RMII, RGMII, RTBI, TBI and FIFO DC Electrical Characteristics
= Min, IOH = –1.0 mA)
= Min, I
IN
IN
= TV
Parameters
Table 23. GMII, MII, RMII, and TBI DC Electrical Characteristics (continued)
, in this case, represents the LV
= TV
DD
OL
Parameter
DD
)
= 1.0 mA)
)
IN
, in this case, represents the LV
LV
Symbol
DD
IN
V
V
V
V
I
I
OH
/TV
OL
IH
IL
IH
IL
and TV
DD
Symbol
IN
IN
GND – 0.3
I
symbols referenced in
I
IH
IL
and TV
2.37
2.00
1.70
–0.3
Min
–15
IN
symbols referenced in
–600
Min
LV
LV
DD
DD
/TV
/TV
Max
2.63
0.40
0.70
10
Table 2
DD
DD
+ 0.3
+ 0.3
Max
40
and
Table 2
Table
Freescale Semiconductor
Unit
μA
μA
V
V
V
V
V
3.
and
Unit
μA
μA
Table
3.
Notes
1, 2, 3
1, 2
Notes
1, 2, 3
3
3

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