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参数资料
| 型号： | 91C94 |
| 厂商： | SMSC Corporation |
| 英文描述： | ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM |
| 中文描述： | 的ISA / PCMCIA的单芯片以太网控制器与RAM |
| 文件页数： | 56/120页 |
| 文件大小： | 447K |
| 代理商： | 91C94 |
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40
I/O SPACE - BANK0
OFFSET
4
NAME
RECEIVE CONTROL REGISTER
TYPE
READ/WRITE
SYMBOL
RCR
HIGH BYTE
SOFT RST
FILT_CAR
0
STRIP CRC
RXEN
0
LOW BYTE
ALMUL
PRMS
RX_
ABORT
0
SOFT_RST - Software activated Reset. Active
high. Valid for ISA and PCMCIA. Initiated by
writing this bit high and terminated by writing the
bit
low.
LAN91C94
configuration
is
not
preserved, except for Configuration, Base, IA0-
5, COR, and CSR Registers. EEPROM is not
reloaded after software reset.
FILT_CAR - Filter Carrier. When set filters
leading edge of carrier sense for 12 bit times.
Otherwise recognizes a receive frame as soon
as carrier sense is active.
STRIP_CRC - When set it strips the CRC on
received frames. When clear the CRC is stored
in memory following the packet. Defaults low.
RXEN - Enables the receiver when set. If
cleared, completes receiving current frame and
then goes idle. Defaults low on reset.
ALMUL - When set accepts all multicast frames
(frames in which the first bit of DA is '1'). When
clear accepts only the multicast frames that
match the multicast table setting. Defaults low.
PRMS - Promiscuous mode. When set receives
all
frames,
regardless
of
their
destination
address. Does not receive its own transmission
unless FDUPX = 1.
RX_ABORT - This bit is set if a receive frame
was aborted due to length longer than 1532
bytes. The frame will not be received. The bit is
cleared by RESET or by the CPU writing it low.
RX_ABORT
RX_OVRN_ INT
Packet Too Long
Run out of Memory
During Receive
1
0
1
相关PDF资料 |
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|---|---|
| 92_TNC-50-0-4/111_NE | BOARD TERMINATED, FEMALE, TNC CONNECTOR, SURFACE MOUNT, JACK |
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| 92082-318 | 18 CONTACT(S), FEMALE, STRAIGHT TWO PART BOARD CONNECTOR, SURFACE MOUNT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 91CCC3 | 制造商:Wirepro 功能描述:Connector Accessories Cap and Chain For Receptacle |
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| 91-CCC-3 | 制造商:Amphenol Corporation 功能描述: 制造商:TE Connectivity 功能描述: |
| 91CR10 | 制造商:TT Electronics / BI Technologies 功能描述:Res Cermet Trimmer 10 Ohm 20% 1/2W 1(Elec)/1(Mech)Turn (9.53 X 9.78 X 7.11mm) Pin Thru-Hole Box |
| 91CR100 | 功能描述:微调电阻 - 通孔 3/8inch 100 Thumbwheel RoHS:否 制造商:Vishay/Sfernice 产品:Trimmer Resistors - Multi Turn 产品类型:Multiturn 转数:14 锥度:Linear 电阻:10 kOhms 电压额定值:250 V 端接类型:Pin 功率额定值:250 mW (1/4 W) 容差:10 % 温度系数:100 PPM / C |
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