參數(shù)資料
型號(hào): MPC8379EVRANGA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
封裝: 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件頁數(shù): 79/114頁
文件大?。?/td> 1337K
代理商: MPC8379EVRANGA
MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
67
High-Speed Serial Interfaces (HSSI)
Figure 46 shows the SPI timing in slave mode (external clock).
Figure 46. SPI AC Timing in Slave Mode (External Clock) Diagram
Figure 47 shows the SPI timing in master mode (internal clock).
Figure 47. SPI AC Timing in Master Mode (Internal Clock) Diagram
20 High-Speed Serial Interfaces (HSSI)
The MPC8379E features two serializer/deserializer (SerDes) interfaces to be used for high-speed serial
interconnect applications. See Table 1 for the interfaces supported.
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.
20.1
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 48 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 (SDn_TX and SDn_TX) or a
receiver input (SDn_RX and SDn_RX). Each signal swings between A volts and B volts where A > B.
SPICLK (input)
tNEIXKH
tNEIVKH
tNEKHOV
Input Signals:
SPIMOSI
(See Note)
Output Signals:
SPIMISO
(See Note)
Note: The clock edge is selectable on SPI.
SPICLK (output)
tNIIXKH
tNIKHOV
Input Signals:
SPIMISO
(See Note)
Output Signals:
SPIMOSI
(See Note)
Note: The clock edge is selectable on SPI.
tNIIVKH
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