- 您现在的位置：买卖IC网 > PDF目录80495 > MC68302CRC16C (MOTOROLA INC) 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, CPGA132 PDF资料下载
参数资料
| 型号： | MC68302CRC16C |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, CPGA132 |
| 封装： | PGA-132 |
| 文件页数： | 81/128页 |
| 文件大小： | 641K |
| 代理商： | MC68302CRC16C |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页当前第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页
ETHERNET Controller
MOTOROLA
MC68EN302 REFERENCE MANUAL
4-17
W—Wrap (Final BD in Table), written by user.
0 = This is not the last buffer descriptor in the Tx BD table.
1 = This is the last buffer descriptor in the Tx BD table. After this buffer has been used,
the Ethernet controller transmits data from the first BD in the table. The maximum
number of Tx BDs in this table is programmable through the BDSIZE bits.
I—Interrupt, written by user.
0 = No interrupt is generated after this buffer has been serviced.
1 = TBINT is set in the Ethernet event register after this buffer has been serviced. If
enabled through the mask register, this bit can cause interrupts to the host.
L—Last in Frame, written by user.
0 = The buffer is not the last in the transmit frame.
1 = The buffer is the last in the transmit frame.
TC—Tx CRC, written by user (only valid if L = 1).
0 = End transmission immediately after the last data byte.
1 = Transmit the CRC sequence after the last data byte.
DEF—Defer Indication, written by Ethernet controller (only valid if L = 1).
The Ethernet controller had to defer while attempting frame transmission. DEF is not set if
a collision occurs during transmission.
HB—Heartbeat Error, written by Ethernet controller (only valid if L = 1).
The collision input was not asserted within the heartbeat window after transmit completion.
HB may be set only if HBC is not set in the ECNFIG register.
LC—Late Collision, written by Ethernet controller (only valid if L = 1).
A collision has occurred after 56 data bytes have been transmitted. The Ethernet controller
terminates the transmission.
RL—Retransmission Limit, written by Ethernet controller (only valid if L = 1).
The transmitter has failed (Retry Limit + 1) attempts to successfully transmit a message due
to repeated collisions on the medium.
RC—Retry Count, written by Ethernet controller (only valid if L = 1).
These four bits indicate the number of retries required before this frame was successfully
transmitted. If RC = 0, then the frame was transmitted correctly the first time. If RC = 15,
then the frame was transmitted successfully while the retry count was at its maximum value.
If RL is set, then RC has no meaning.
UN—Underrun, written by Ethernet controller (only valid if L = 1).
A transmit FIFO underrun occurred while transmitting one or more of the the data buffers
associated with this frame. When FIFO underrun occurs, frame transmission halts once an
incorrect CRC is appended. The remaining buffer(s) associated with this frame are DMA’d
and dumped by the transmit logic.
相关PDF资料 |
PDF描述 |
|---|---|
| MC9S12DJ256CVFU | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80 |
| MC68HC705C5CP | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP40 |
| M37471M8-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| M37478M4-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| M37478M8-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP56 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68302CRC20 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual |
| MC68302CRC20C | 功能描述:微处理器 - MPU 68K INTGR COM PROC DMA 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 |
| MC68302EH16C | 功能描述:微处理器 - MPU 68K INTGR COM PROC DMA 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 |
| MC68302EH16C | 制造商:Freescale Semiconductor 功能描述:32-Bit Microcontroller IC |
| MC68302EH16CB1 | 功能描述:微处理器 - MPU 68K INTGR COM PROC DMA 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 |
发布紧急采购，3分钟左右您将得到回复。