参数资料
型号: MPC8544ECVTAQGB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 1000 MHz, RISC PROCESSOR, PBGA783
封装: 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-783
文件页数: 41/120页
文件大小: 1321K
代理商: MPC8544ECVTAQGB
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
27
Enhanced Three-Speed Ethernet (eTSEC), MII Management
Figure 7. 4-Wire AC-Coupled SGMII Serial Link Connection Example
Change in VOS between 0 and 1
ΔVOS
——
25
mV
Output current on short to GND
ISA, ISB
——
40
mA
Notes:
1. This will not align to DC-coupled SGMII.
2. |VOD| = |VSD2_TXn – VSD2_TXn|. |VOD| is also referred as output differential peak voltage. VTX-DIFFp-p = 2*|VOD|.
3. The |VOD| value shown in the table assumes the following transmit equalization setting in the XMITEQCD (for SerDes 2 lane 2
and 3) bit field of MPC8544E SerDes 2 control register 1:
The MSbit (bit 0) of the above bit field is set to zero (selecting the full VDD-DIFF-p-p amplitude—power up default);
The LSbits (bit [1:3]) of the above bit field is set based on the equalization setting shown in this table.
4. VOS is also referred to as output common mode voltage.
5. The |VOD| value shown in the Typ column is based on the condition of XVDD_SRDS2-Typ = 1.0 V, no common mode offset variation
(VOS = 500 mV), SerDes2 transmitter is terminated with 100-Ω differential load between SD2_TX[n] and SD2_TX[n].
Table 24. DC Transmitter Electrical Characteristics (continued)
Parameter
Symbol
Min
Typ
Max
Unit
Notes
MPC8544E SGMII
SerDes Interface
50
Ω
50
Ω
Transmitter
SD2_TXn
SD_RXm
SD2_TXn
SD_RXm
Receiver
CTX
50
Ω
50
Ω
SD2_RXn
Receiver
Transmitter
SD_TXm
CTX
50
Ω
50
Ω
50
Ω
50
Ω
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