參數(shù)資料
型號(hào)： MX98746
廠商： MACRONIX INTERNATIONAL CO LTD
元件分類(lèi)： 微控制器/微處理器
英文描述： 100 Base-TX/FX 5-Port ClassII Repeater Controller(100 Base-TX/FX 5端口 ClassII中繼器控制器)
中文描述： 5 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP128
封裝： PLASTIC, QFP-128
文件頁(yè)數(shù)： 1/30頁(yè)
文件大?。?/td> 147K
代理商： MX98746
1.0 FEATURES
IEEE 802.3u D5 repeater and management
compatible
Support 5 TX/FX ports
Support 8-scale utilization and collision rate LED
display
Asynchronous Expansion port clock supported for
easily stackable application
Separate jabber and partition state machines for each
port
On-chip elasticity buffer for PHY signal re-timing to the
MX98746 clock source
Contents of internal register loaded from EEPROM
CMOS device features high integration and low power
with a signle +5V supply
128-PIN PQFP
2.0 GENERAL DESCRIPTION
The MX98746, Second generation 100 Mb/s TX/FX Hub
Controller, is designed specifically to meet the needs of
today's high speed Fast Ethernet networking systems.
The MX98746 is fully IEEE 802.3u D5 clause 27 re-
peater compatible. Difference from MX98741 and
MX98745, MX98746 support 5 dedicated TX/FX ports.
All contents of internal registers are loaded from
EEPROM in MX98746. If system application prefers
default setting instead of using contents from EEPROM,
EEPROM operation can be disabled by setting EECONF
to low. This feature faciliates system modulization appli-
cation.
8 scale of utilization and collision rate LED are also pro-
vided by MX98746. They are 1%, 3%, 5%, 10%, 20%,
40%, 60% and 80+% for network utilization, and 1%,
3%, 5%, 8%, 10%, 13%, 15% and 20+% for collision
rate. The defination for utiliztion is Mbs Received/100
Mb within one second sampling period. Meanwhile, RX/
LINK, Partition, Isolation and Collision status are also
provided through LED display.
A great improvement in MX98746 (compared to
MX98741) is that it also provides "asynchronous ex-
pansion port data transfer mode" to make stackable
design more easier.
1
P/N:PM0478
REV. 1.1, JAN. 06, 1998
MX98746
100 BASE-TX/FX
5-PORT CLASSII
REPEATER CONTROLLER
PRELIMINARY
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