參數(shù)資料
型號(hào): LAN91C96I-MS
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 微控制器/微處理器
英文描述: NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
中文描述: 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封裝: LEAD FREE, QFP-100
文件頁數(shù): 42/110頁
文件大?。?/td> 655K
代理商: LAN91C96I-MS
Non-PCI Single-Chip Full Duplex Ethernet Controller
Rev.
11/18/2004
Page 42
SMSC DS – LAN91C96I
DATASHEET
The contents of MIR as well as the low byte of MCR are specified in 256* M bytes. The multiplier M is
determined by bits 11, 10 and 9 as follows:
DEVICE
FEAST
BIT 11
0
BIT 10
1
BIT 9
0
M
2
MAX MEMORY SIZE
256
(
Note 7.1
)
256
(
Note 7.1
)
2=128k
256
(
Note 7.1
)
256
(
Note 7.1
)
1=64k
256k
512k
1M
LAN91C90
0
0
1
1
FUTURE
FUTURE
FUTURE
0
1
1
1
0
0
1
0
1
4
8
16
Note 7.1
Bits 11, 10 and 9 are read only bits used by the software driver to transparently run on different controllers
of the LAN9000 family.
I/O SPACE - BANK1
OFFSET
0
NAME
TYPE
SYMBOL
CR
CONFIGURATION REGISTER
READ/WRITE
The Configuration Register holds bits that define the device configuration and are not expected to change
during run-time. This register is part of the EEPROM saved setup in Local Bus mode only.
0
NO
WAIT
0
FULL
STEP
0
SET
SQLCH
0
AUI
SELECT
0
0
X
X
X
16BIT
DIS LINK
Reserved
INT
SEL1
0
INT
SEL0
0
function
of EN16*
pin
0
1
1
0
X
NO WAIT - When set, does not request additional wait states. An exception to this are accesses to the
Data Register if not ready for a transfer. When clear, negates IOCHRDY for two to three 20MHz clocks on
any cycle to the LAN91C96I.
FULL STEP - This bit is used to select the signaling mode for the AUI port. When set the AUI port uses full
step signaling. Defaults low to half step signaling. This bit is only meaningful when AUI SELECT is high.
SET SQLCH - When set, the squelch level used for the 10BASE-T receive signal is 240mV. When clear
the receive squelch level is 400mV. Defaults low.
AUI SELECT - When set the AUI interface is used, when clear the 10BASE-T interface is used. Defaults
low.
16BIT - Used in conjunction with EN16* and IO is 8 to define the width of the system bus. If the EN16* pin
is low, this bit is forced high. Otherwise the bit defaults low and can be programmed by the host CPU.
DIS LINK - This bit is used to disable the 10BASE-T link test functions. When this bit is high the
LAN91C96I disables link test functions by not generating nor monitoring the network for link pulses. In this
mode the LAN91C96I will transmit packets regardless of the link test, the EPHSR LINK_OK bit will be set
and the LINK LED will stay on. When low the link test functions are enabled. If the link status indicates
FAIL, the EPHSR LINK_OK bit will be low, while transmit packets enqueued will be processed by the
LAN91C96I, transmit data will not be sent out to the cable.
相關(guān)PDF資料
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LAN91C96I-MU NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
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LANF72351D ETHERNET 10BASE-T LAN FILTER MODULES
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