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參數(shù)資料
| 型號： | LAN91C100 |
| 廠商： | SMSC Corporation |
| 英文描述： | FEAST⑩ Fast Ethernet Controller |
| 中文描述： | 宴⑩快速以太網(wǎng)控制器 |
| 文件頁數(shù)： | 68/101頁 |
| 文件大?。?/td> | 312K |
| 代理商： | LAN91C100 |
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68
BOARD SETUP INFORMATION
The following parameters are obtained from the
EEPROM as board setup information:
ETHERNET INDIVIDUAL ADDRESS
I/O BASE ADDRESS
10BASE-T or AUI INTERFACE
MII or ENDEC INTERFACE
INTERRUPT LINE SELECTION
All the above mentioned values are read from
the EEPROM upon hardware reset. Except for
the INDIVIDUAL ADDRESS, the value of the
IOS switches determines the offset within the
EEPROM for these parameters, in such a way
that many identical boards can be plugged into
the same system by just changing the IOS
jumpers.
In order to support a software utility based
installation, even if the EEPROM was never
programmed, the EEPROM can be written using
the LAN91C100. One of the IOS combination is
associated with a fixed default value for the key
parameters (I/O BASE, INTERRUPT) that can
always be used regardless of the EEPROM
based value being programmed. This value will
be used if all IOS pins are left open or pulled
high.
The EEPROM is arranged as a 64 x 16 array.
The specific target device is the 9346 1024-bit
Serial EEPROM. All EEPROM accesses are
done in words. All EEPROM addresses in the
spec are specified as word addresses.
INDIVIDUAL ADDRESS
20-22 hex
If IOS2-0 = 7 , only the INDIVIDUAL ADDRESS
is read from the EEPROM. Currently assigned
values are assumed for the other registers.
These values are default if the EEPROM read
operation follows hardware reset.
The EEPROM SELECT bit is used to determine
the type of EEPROM operation: a) normal or b)
general purpose register.
a)
NORMAL
EEPROM SELECT bit = 0
EEPROM
OPERATION
-
On EEPROM read operations (after reset or
after
setting
RELOAD
CONFIGURATION
REGISTER
REGISTER are updated with the EEPROM
values at locations defined by the IOS2-0 pins.
The INDIVIDUAL ADDRESS registers are
updated with the values stored in the
INDIVIDUAL ADDRESS area of the EEPROM.
high)
and
the
BASE
REGISTER
EEPROM WORD
ADDRESS
IOS Value * 4
Configuration
Register
Base Register
(IOS Value * 4) + 1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LAN91C110 | FEAST FAST ETHERNET CONTROLLER FOR PCMCIA AND GENERIC 16-BIT APPLICATIONS |
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| LAN91C100FD(208TQFP) | LAN Node Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LAN91C100FD | 制造商:- 功能描述: 制造商:SMSC 功能描述: |
| LAN91C100-FD | 制造商:SMSC 制造商全稱:SMSC 功能描述:FEAST Fast Ethernet Controller with Full Duplex Capability |
| LAN91C100FD(208PQFP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| LAN91C100FD(208TQFP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller |
| LAN91C100FD_06 | 制造商:SMSC 制造商全稱:SMSC 功能描述:FEAST Fast Ethernet Controller with Full Duplex Capability |
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