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Controls and Indicators
4.1.19 RUN Indicator—LD18
When the green RUN led - LD18 is lit, it indicates that the MPC8272 is performing cycles
on the PPC bus. When dark, the MPC8272 is either running internally or stuck.
4.1.20 ATM ON Indicator—LD19
When the yellow ATM ON led is lit, it indicates that the ATM-UNI transceiver PM5384 is
enabled for communication. When it is dark, the ATM-UNI transceiver is disconnected
from the MPC8272, enabling the use of its associated FCC1 pins off-board by using the
expansion connectors or for Fast Ethernet.
ATM ON led is controlled by BCSR1.
4.1.21 Fast Ethernet Port 1 Enabled—LD20
When the yellow ETH1 ON led is lit, the fast Ethernet port 1 transceiver DM9161 is
connected to FCC1. When it is dark, the DM9161 is in power-down mode and disconnected
from FCC1, enabling the use of its associated FCC1 pins off-board by using the expansion
connectors. BCSR1 controls the state of LD20.
4.1.22 Fast Ethernet Port 2 Enabled—LD22
When the yellow ETH2 ON led is lit, the fast Ethernet port 2 transceiver DM9161 is
connected to FCC2. When it is dark, the DM9161 is in power-down mode and disconnected
from FCC2, enabling the use of its associated FCC2 pins off-board by using the expansion
connectors. BCSR1 controls the state of LD22.
4.1.23 RS232 Port 1 ON—LD23
When the yellow RS232 Port 1 ON led is lit, the RS232 transceiver is connected to P13A
(upper DB9 connector), is active, and communication using that medium is allowed. When
it is darkened, the transceiver is in shutdown mode and its associated SCC1 pins may be
used off-board by using the expansion connectors.
4.1.24 Fast Ethernet Port 1 Full Duplex Indicator—LD1
When the Dm9161 on FCC1 is enabled and is in full duplex operation mode, the red led -
LD1 lights.
4.1.25 RS232 Port 2 ON—LD24
When the yellow RS232 Port 2 ON led is lit, the RS232 transceiver is connected to P13B
(lower DB9 connector), is active, and communication using that medium is allowed. When
Chapter 4. Operating Instructions
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MPC8272CVRE 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
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MPC8272CVRMIBA 功能描述:微处理器 - MPU 266 MHz 505.4 MIPS RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8272CVRP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8272CVRPIEA 功能描述:微处理器 - MPU 300 MHz 570 MIPS RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324