- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45216 > MC68302PV33C (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(hào)： | MC68302PV33C |
| 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(yè)數(shù)： | 67/128頁(yè) |
| 文件大?。?/td> | 641K |
| 代理商： | MC68302PV33C |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)當(dāng)前第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)
ETHERNET Controller
4-4
MC68EN302 REFERENCE MANUAL
MOTOROLA
This read only field is the buffer descriptor number that was being accessed when a bus
error occurred. See 4.1.5 Interrupt Event Register (INTR_EVENT) for a description of the
bus error handling.
Bit 8—Reserved. Should be written to zero by the host processor. This bit is always read as
zero.
BDSIZE1-0—Buffer descriptor size. (R/W)
00 = 8 transmit buffer descriptors, 120 receive buffer descriptors
01 = 16 transmit buffer descriptors, 112 receive buffer descriptors
10 = 32 transmit buffer descriptors, 96 receive buffer descriptors
11 = 64 transmit buffer descriptors, 64 receive buffer descriptors
BDSIZE controls the allocation of the44 128 on-chip buffer descriptors between the
transmit and receive operations. Typical implementations will set BDSIZE(1–0) to 01
allowing 16 transmit buffer descriptors and 112 receive descriptors.
TSRLY—Transmit start early. (R/W)
TSRLY controls when the transmission of a frame will begin. Typical applications will set
TSRLY to 0.
0 = Frames do not begin transmitting until the transmit FIFO has only WMRK bytes
available (empty), where WMRK ranges from 96 to 120 bytes.
1 = The frame will begin transmitting after the WMRK number of bytes have been
written to the transmit FIFO where WMRK ranges from 8 to 32 bytes. This requires
low bus latency to avoid transmit FIFO underrun.
WMRK1–0—FIFO Watermark. (R/W)
00 = 8 FIFO bytes present or available
01 = 16 FIFO bytes present or available
10 = 24 FIFO bytes present or available
11 = 32 FIFO bytes present or available
The FIFO Watermark is used to control the start of a DMA burst. In the receive direction, the
DMA state machine waits for either an end-of-frame (EOF) or a WMRK number of bytes to
be in the receive FIFO prior to beginning a DMA burst of data out of the MC68EN302 to the
host bus. In the transmit direction, the DMA state machine waits for WMRK number of bytes
TSRLY
WMRK<1:0>
BYTES IN TRANSMIT FIFO AT
START OF TRANSMISSION
0
00
120
001
112
0
10
104
011
96
100
8
101
16
110
24
111
32
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SPAK302PV16VC | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144 |
| SPAK302FC25C | 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132 |
| MC68EN360EM25 | 7 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP240 |
| MC68EN360FE33 | RISC MICROCONTROLLER, CQFP240 |
| MC68360RC25 | RISC MICROCONTROLLER, CPGA241 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68302RC16 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual |
| MC68302RC16C | 功能描述:微處理器 - MPU 68K INTGR COM PROC DMA 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(shí)鐘頻率:536 MHz 程序存儲(chǔ)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 |
| MC68302RC20 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual |
| MC68302RC20C | 功能描述:微處理器 - MPU 68K INTGR COM PROC DMA 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(shí)鐘頻率:536 MHz 程序存儲(chǔ)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 |
| MC68302RC25 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。