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
文件頁數(shù): 24/120頁
文件大?。?/td> 447K
代理商: 91C94
12
PIN NUMBER
QFP
VTQFP/
TQFP
NAME
SYMBOL
BUFFER
TYPE
DESCRIPTION
69
67
nBoard
Select Led
nBSELED/
RXD
OD16
I with
pullup
INTERNAL ENDEC - Board Select LED
activated by accesses to I/O space
(nIORD or nIOWR active with AEN low
and valid address decode for ISA, and
with nREG low and COR0 high for
PCMCIA).
The
pulse
is
stretched
beyond the access duration to make
the LED visible
EXTERNAL ENDEC - NRZ receive
data input
71
69
nReceive
Led/
nReceive
Clock
nRXLED/
nRXCLK
OD16
I with
pullup
INTERNAL ENDEC - Receive LED
output
EXTERNAL ENDEC - Receive clock
input
70
68
nLink LED
nLNKLED/
TXD
OD16
O162
INTERNAL ENDEC - Link LED output .
Note:
The output will not be driven
low during a reset
EXTERNAL ENDEC - Transmit Data
output.
3
1
Enable
EEPROM
ENEEP
I with
pullup
Input - This active high input enables
the EEPROM to be read or written by
the LAN91C94. Internally pulled up.
Must be connected to ground if no
serial EEPROM is used
93
91
nEnable 16
Bit
nEN16
I with
pullup
Input - When low the LAN91C94 is
configured for 16 bit bus operation. If
left open the LAN91C94 works in 8 bit
bus mode. 16 bit configuration can
also
be
programmed
via
serial
EEPROM, software initialization of the
CONFIGURATION
REGISTER,
and
PCMCIA configuration space
相關(guān)PDF資料
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92_TNC-50-0-4/111_NE BOARD TERMINATED, FEMALE, TNC CONNECTOR, SURFACE MOUNT, JACK
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