參數(shù)資料
型號: MPC8568VTAQGG
廠商: Freescale Semiconductor
文件頁數(shù): 98/139頁
文件大?。?/td> 0K
描述: MPU POWERQUICC III 1023-PBGA
標準包裝: 24
系列: MPC85xx
處理器類型: 32-位 MPC85xx PowerQUICC III
速度: 1.0GHz
電壓: 1.1V
安裝類型: 表面貼裝
封裝/外殼: 1023-BBGA,F(xiàn)CBGA
供應商設備封裝: 1023-FCPBGA(33x33)
包裝: 托盤
MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
Freescale Semiconductor
61
High-Speed Serial Interfaces (HSSI)
Figure 38 shows the PCI output AC timing conditions.
Figure 38. PCI Output AC Timing Measurement Condition
13 High-Speed Serial Interfaces (HSSI)
The MPC8568E features one Serializer/Deserializer (SerDes) interfaces to be used for high-speed serial
interconnect applications. It can be used for PCI Express and/or Serial RapidIO data transfers.
This section describes the common portion of SerDes DC electrical specifications, which is the DC
requirement for SerDes Reference Clocks. The SerDes data lane’s transmitter and receiver reference
circuits are also shown.
13.1
Signal Terms Definition
The SerDes utilizes differential signaling to transfer data across the serial link. This section defines terms
used in the description and specification of differential signals.
Figure 39 shows how the signals are defined. For illustration purpose, only one SerDes lane is used for
description. The figure shows waveform for either a transmitter output (SD_TX and SD_TX) or a receiver
input (SD_RX and SD_RX). Each signal swings between A Volts and B Volts where A > B.
Using this waveform, the definitions are as follows. To simplify illustration, the following definitions
assume that the SerDes transmitter and receiver operate in a fully symmetrical differential signaling
environment.
1. Single-Ended Swing
The transmitter output signals and the receiver input signals SD_TX, SD_TX, SD_RX and SD_RX
each have a peak-to-peak swing of A – B Volts. This is also referred as each signal wire’s
Single-Ended Swing.
2. Differential Output Voltage, VOD (or Differential Output Swing):
The Differential Output Voltage (or Swing) of the transmitter, VOD, is defined as the difference of
the two complimentary output voltages: VSD_TX – VSD_TX. The VOD value can be either positive
or negative.
3. Differential Input Voltage, VID (or Differential Input Swing):
CLK
Output Delay
tPCKHOV
High-Impedance
tPCKHOZ
Output
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