参数资料
型号: DS3112
厂商: DALLAS SEMICONDUCTOR
元件分类: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PBGA256
封装: 27 X 27 MM, PLASTIC, BGA-256
文件页数: 66/134页
文件大小: 900K
代理商: DS3112
DS3112
37 of 134
4.3 MASTER STATUS AND INTERRUPT REGISTER DESCRIPTION
A Note About The Status Registers in the DS3112
The status registers in the DS3112 allow the Host to monitor the real time condition of the device. Most
of the status bits in the device can cause a hardware interrupt to occur. Also, most of the status bits
within the device are latched to insure that the Host can detect changes in state and the true status of the
device. There are three types of status bits in the DS3112. The first type is called an event status bit and
it is derived from a momentary condition or state that occurs within the device. The event status bits are
always cleared when read and can generate an interrupt when they are asserted. An example of an event
status bit is the One Second Timer Boundary Occurrence (OST). The second type of status bit is called
an alarm status bit and it is derived from conditions that can occur for longer than an instance. The alarm
status bits will be cleared when read unless the alarm is still present. The alarm status bits generate
interrupts on a change in state in the alarm (i.e. when it is asserted or deasserted). An example of an
alarm status bit is the Loss Of Frame (LOF). The third type of status bit is called a real time status bit.
The real time status bit remains active as long as the condition exists and will generate an interrupt as
long as the condition exists. An example of a real time status bit is the Loss Of Transmit Clock (LOTC).
Event Status Bit Figure 4.3A
Alarm Status Bit Figure 4.3B
Internal Signal
Status Bit
Interrupt
Read
Internal Signal
Status Bit
Interrupt
Read
相关PDF资料
PDF描述
DS3131 SPECIALTY TELECOM CIRCUIT, PBGA256
DS3134 DATACOM, FRAMER, PBGA256
DS3150QN DATACOM, PCM TRANSCEIVER, PQCC28
DS3150Q DATACOM, PCM TRANSCEIVER, PQCC28
DS3150TN DATACOM, PCM TRANSCEIVER, PDIP48
相关代理商/技术参数
参数描述
DS3112+ 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS3112+W 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS3112D1 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS3112D1+ 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS3112DK 功能描述:网络开发工具 DS3112 Dev Kit RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V