- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45215 > MC68EN302CPV20BT (FREESCALE SEMICONDUCTOR INC) 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144 PDF資料下載
參數(shù)資料
| 型號： | MC68EN302CPV20BT |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASITC, LQFP-144 |
| 文件頁數(shù)： | 79/128頁 |
| 文件大?。?/td> | 641K |
| 代理商： | MC68EN302CPV20BT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁當(dāng)前第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁
ETHERNET Controller
MOTOROLA
MC68EN302 REFERENCE MANUAL
4-15
LG—Rx Frame Length Violation, written by Ethernet controller.
A frame length greater than 1520 (maximum allowed receive frame length) was recognized.
In this situation, note that only the first 1520 bytes are written to the data buffer. This bit is
valid only if the L-bit is set. This frame should be discarded.
NO—Rx Nonoctet Aligned Frame, written by Ethernet controller.
The received frame contained a number of bits which is not a multiple of 8, and the CRC
check that occurred at the preceding byte boundary generated an error. This bit is valid only
if the L-bit is set. If this bit is set, the CR bit will not be set. This frame should be discarded.
SH—Short Frame, written by Ethernet controller.
The MC68EN302 does not support SH and this bit is always cleared. This bit indicates that
a frame length less than the minimum defined for this channel was recognized. This frame
should be discarded.
CR—Rx CRC Error, written by Ethernet controller.
This frame contains a CRC error and is an integral number of octets in length. This bit is
valid only if the L-bit is set. This frame should be discarded.
OV—Overrun, written by Ethernet controller.
A receive FIFO overrun occurred during frame reception. During a FIFO overflow, the status
bits also in this word (M, LG, NO, SH, CR, and CL) lose their normal meaning and are zero.
This bit is valid only if the L-bit is set. This frame should be discarded.
CL—Collision, written by Ethernet controller.
A collision occurred during frame reception and the frame was closed. This bit is set only if
a late collision occurred. This bit is valid only if the L-bit is set. This frame should be
discarded.
Data Length, written by Ethernet controller.
Data length indicates the number of octets written by the Ethernet controller into this BD’s
data buffer. It is written by the Ethernet controller upon the close of this BD.
Reason and ARIndex, written by Ethernet controller.
If INDEX_EN=1 in the AR_CNTRL register, then the Reason and ARIndex fields replace the
most significant byte of the Rx Buffer Pointer. The Reason and ARIndex are available on all
buffer descriptors for a frame when INDEX_EN is set, independent of the condition of the L
and F bits. When INDEX_EN = 0 the Reason and ARIndex fields are not modified by
hardware.
Rx Buffer Pointer, written by user.
The receive buffer pointer always points to the first location of the associated data buffer and
must be a multiple of 2. The data buffer must reside in memory external to the Ethernet
controller. When INDEX_EN=1, the most significant byte of the receive buffer pointer is
replaced by a reason and index field. When INDEX_EN=0, the receive buffer pointer is not
modified. See 4.6.1 Buffer Descriptor Modification for more details.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68302FC20CR2 | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132 |
| MC68302FC16CR2 | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132 |
| MC68LC302PU20CT | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100 |
| MC68EN302PV25BT | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144 |
| MC68302PV33C | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68EN302PV20 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor with Ethernet |
| MC68EN302PV20BT | 功能描述:IC MPU MULTI-PROTOCOL 144-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68EN302PV25 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor with Ethernet |
| MC68EN302PV25BT | 功能描述:IC MPU MULTI-PROTOCOL 144-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M683xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA（25x25） 包裝:托盤 |
| MC68EN360AI25L | 功能描述:微處理器 - MPU QUICC ETHRN RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。