參數(shù)資料
型號： MPC8568ECVTANGGA
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 800 MHz, RISC PROCESSOR, PBGA1023
封裝： 33 X 33 MM, 2.75 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, FCBGA-1023
文件頁數(shù)： 61/139頁
文件大?。?/td> 1449K
代理商： MPC8568ECVTANGGA
MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
28
Freescale Semiconductor
Ethernet Interface and MII Management
8.2
FIFO, GMII, MII, TBI, RGMII, RMII, and RTBI AC Timing
Specifications
The AC timing specifications for FIFO, GMII, MII, TBI, RGMII, RMII and RTBI are presented in this
section.
8.2.1
FIFO AC Specifications
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.
Input high current
(VIN = LVDD, VIN = TVDD)
IIH
—40
μA
1, 2, 3
Input low current
(VIN = GND)
IIL
–600
—
μA3
Notes:
1. LVDD supports eTSECs 1 and 2.
2. TVDD supports QE UCC1 and UCC2 ethernet ports.
3. The symbol VIN, in this case, represents the LVIN and TVIN symbols referenced in Table 2 and Table 3.
Table 24. GMII, MII, RMII, RGMII, RTBI, TBI and FIFO DC Electrical Characteristics
Parameters
Symbol
Min
Max
Unit
Notes
Supply voltage 2.5 V
LVDD/TVDD
2.37
2.63
V
1, 2
Output high voltage
(LVDD/TVDD = Min, IOH = –1.0 mA)
VOH
2.00
LVDD/TVDD + 0.3
V
—
Output low voltage
(LVDD/TVDD = Min, IOL = 1.0 mA)
VOL
GND – 0.3
0.40
V
—
Input high voltage
VIH
1.70
LVDD/TVDD + 0.3
V
—
Input low voltage
VIL
–0.3
0.70
V
—
Input high current
(VIN = LVDD, VIN = TVDD)
IIH
—10
μA1, 2, 3
Input low current
(VIN = GND)
IIL
–15
—
μA3
Note:
1. LVDD supports eTSECs 1 and 2.
2. TVDD supports QE UCC1 and UCC2 ethernet ports.
3. Note that the symbol VIN, in this case, represents the LVIN and TVIN symbols referenced in Table 2 and Table 3.
Table 23. GMII, MII, RMII, and TBI DC Electrical Characteristics (continued)
Parameter
Symbol
Min
Max
Unit
Notes
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