參數(shù)資料
型號(hào): 91C94
廠商: SMSC Corporation
英文描述: ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM
中文描述: 的ISA / PCMCIA的單芯片以太網(wǎng)控制器與RAM
文件頁(yè)數(shù): 81/120頁(yè)
文件大?。?/td> 447K
代理商: 91C94
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63
I/O SPACE - BANK3
OFFSET
8
NAME
MANAGEMENT INTERFACE
TYPE
READ/WRITE
SYMBOL
MGMT
This register contains status bits and control bits for management of different transceivers modules.
Some of the pins are shared with the serial EEPROM interface. Management is software controlled,
and does not use the serial EEPROM and the transceiver management functions at the same time.
HIGH
BYTE
nXNDEC
IOS2
IOS1
IOS0
0
1
LOW
BYTE
MDOE
MCLK
Reserved
MD0
0
1
0
nXNDEC - Read only bit reflecting the status of
the nXENDEC pin.
IOS0-2 - Read only bits reflecting the status of
the IOS0-2 pins.
MDO - The value of this bit drives the EEDO pin
when MDOE=1.
MDCLK - The value of this bit drives the EESK
pin when MDOE=1.
MDOE - When this bit is high pins EEDO EECS
and
EESK
will
be
used
for
transceiver
management
functions,
otherwise
the
pins
assume the EEPROM values.
MDOE=0
MDOE=1
EEDO
Serial EEPROM Data Out
Bit MDO
EESK
Serial EEPROM Clock
Bit MCLK
EECS
Serial EEPROM Chip Select
0
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