- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98011 > MC68838FCC (MOTOROLA INC) 1 CHANNEL(S), 125M bps, FDDI CONTROLLER, CQFP120 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68838FCC |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), 125M bps, FDDI CONTROLLER, CQFP120 |
| 封裝： | CERAMIC, QFP-120 |
| 文件頁(yè)數(shù)： | 25/100頁(yè) |
| 文件大小： | 465K |
| 代理商： | MC68838FCC |
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)當(dāng)前第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)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)
3- 10
MC68838 USER’S MANUAL
MOTOROLA
The SENT_COUNT is not cleared (stripping continues) if a duplicate token is
received (i.e., a token received while transmitting).
When this bit is one, the MAC transmitter internally creates and transmits one
special void frame after leaving the TX_Data state (i.e., just before it would
normally release the token). This MAC chip always creates and transmits a
special void frame with the following characteristics:
FC = 48-bit addressed void frame
DA = my long address register
SA = my long address register
Zero INFO bytes
FCS = valid CRC
EFS = TRRR.
When RING_OPERATIONAL is zero, this bit is ignored by the MAC chip.
TXPARITY_ON—Transmit Parity Check On
0 = The TPRlTY input in the TPATHx bus is ignored.
1 = TPATHx and TPRITY together must have odd parity (i.e., an odd number of the
nine lines must be high), or the MAC aborts the transmission of this frame and
asserts TABORT.
REPEAT_ONLY—Repeat Only
The transmitter cannot capture the token.
0 = The transmitter operates normally.
1 = The MAC will not start sending any more frames from the FSI, although it can
finish any frames it has started to send as well as sending any frames internally
generated by the MAC (i.e., claim, beacon, and void frames). Specifically, the
conditions USABLE_TOKEN and ANOTHER_FRAME are always zero; thus, the
transmitter cannot capture a token. If it has the token, it cannot send any more
frames although it can finish sending the frame it is currently sending (plus any
associated token). The transmitter cannot start sending frames whose
TOKEN_TYPE field in the packet request header allows the frame to be sent
without a token. When REPEAT_ONLY = 1 and RING_PURGE = 1, the MAC will
still capture the token, send two special void frames, and then release the same
kind of token.
ARCHIVE
INFORMA
TION
ARCHIVE
INFORMA
TION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68EC020FG | 32-BIT, 25 MHz, MICROCONTROLLER, PQFP100 |
| MC68HC05CC1P | 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDIP40 |
| MC68HC05CC2B | 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDIP42 |
| MC68HC05CT4FN | 8-BIT, MROM, 2.048 MHz, MICROCONTROLLER, PQCC44 |
| MC68HC05J1P | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68840FE25B | 制造商:Motorola Inc 功能描述:68840FE25B |
| MC68840FE-25B | 制造商:Motorola Inc 功能描述:68840FE-25B |
| MC6885 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HEX THREE-STATE BUFFER/INVERTERS |
| MC68851 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:32-Bit Paged Memory Management Unit |
| MC6885L | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HEX THREE-STATE BUFFER/INVERTERS |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。