参数资料
型号: MC8641DVU1333JB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 166.66 MHz, MICROPROCESSOR, CBGA1023
封装: 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
文件页数: 97/130页
文件大小: 1493K
代理商: MC8641DVU1333JB
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
69
PCI Express
Figure 48. Single-Ended Measurement Points for Rise and Fall Time Matching
The other detailed AC requirements of the SerDes Reference Clocks is defined by each interface protocol
based on application usage. Refer to the following sections for detailed information:
13.3
SerDes Transmitter and Receiver Reference Circuits
Figure 49 shows the reference circuits for SerDes data lane’s transmitter and receiver.
Figure 49. SerDes Transmitter and Receiver Reference Circuits
The DC and AC specification of SerDes data lanes are defined in each interface protocol section below
(PCI Express or Serial Rapid IO) in this document based on the application usage:”
Note that external AC Coupling capacitor is required for the above two serial transmission protocols with
the capacitor value defined in specification of each protocol section.
14 PCI Express
This section describes the DC and AC electrical specifications for the PCI Express bus of the MPC8641.
SD
n_REF_CLK
SD
n_REF_CLK
SD
n_REF_CLK
SD
n_REF_CLK
50
Ω
50
Ω
Receiver
Transmitter
SD1_TX
n or
SD2_TX
n
SD1_TX
n or
SD2_TX
n
SD1_RX
n or
SD2_RX
n
SD1_RX
n or
SD2_RX
n
50
Ω
50
Ω
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