參數(shù)資料
型號： 9880
廠商： Intel Corp.
英文描述： Advanced 10/100 Repeater with Intergrated Management
中文描述： 高級10/100中繼器與綜合管理
文件頁數(shù)： 50/118頁
文件大小： 1648K
代理商： 9880
LXT9860/9880
—
Advanced 10/100 Repeater with Integrated Management
50
Datasheet
Document #: 248987
Revision#: 003
Rev Date: 08/07/01
Figure 9. IRB Block Diagram
Table 19. Cascading and Stacking Connections
Signal Type
Connections Between Devices
(Cascading)
Connections Between Boards
(Stacking)
Local
Connect all.
Do not connect.
Stack
For devices with ChipID
≠
00, pull-up at each
device and
do not interconnect
.
Connect devices with ChipID = 00 between
boards. Use one pull-up resistor per stack.
Full
Connect all.
Connect using buffers.
Special (xxISO)
For devices with ChipID
≠
00, leave open.
For device with ChipID
=
00, connect to
buffer enable.
Do not connect.
MMSTR OUT
MMSTR OUT
Digital IRB signals include IRnDAT, IRnCOL, IR10COLBP, IRnENA and IRnCLK.
Local Analog IRB signal: IRnCFS.
Inter-Board Analog IRB signal: IRnCFSBP.
HOLDCOL, MMSTRIN, and MMSTROUT are used on the 10M IRB Only.
This diagram shows a single IRB. The LXT98xx actually has two independent IRBs, one per speed/segment.
’
245
9880 ChipID = 0
9880 ChipID = 1
9880 ChipID = n
Hub Board 1
Digital IRB Signals
Analog IRB Signals
MMSTR
OUT / IN
MMSTR
OUT / IN
MMSTR
OUT
MMSTR
IN
ISOLATE
IRDEN
HOLDCOL
’
245
988 ChipID = 0
9880 ChipID = 1
9880 ChipID = n
Hub Board 2
Digital IRB Signals
Analog IRB Signals
MMSTR
OUT / IN
MMSTR
OUT / IN
MMSTR
OUT
MMSTR IN
ISOLATE
IRDEN
HOLDCOL
’
245
9880 ChipID = 0
9880 ChipID = 1
9880 ChipID = n
Hub Board n
Digital IRB Signals
Analog IRB Signals
MMSTR
OUT / IN
MMSTR
OUT / IN
MMSTR
OUT
MMSTR IN
ISOLATE
IRDEN
HOLDCOL
MMSTR OUT / IN
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