ip178a ETC-unknow, ip178a Datasheet - Page 12

• Manufacturer Part Number: ip178a
• Description: 8-port 10/100 Ethernet Integrated Switch
• Manufacturer: ETC-unknow

PIN Description
Preliminary, Specification subject to change without notice
IP178A-DS-P05
Sep. 09, 2002
133, 131 HASH_MODE[1:0]
126, 125 AGETIME[1:0]
Pin no.
Basic operation parameter setting of switch
Label
(continued)
Type
IPH,
IPL
IPL
Hashing algorithm selection for 1
00: direct and CRC (default)
01: direct and CRC
10: CRC and CRC
11: reserved
The pins are input signals during reset and are latched at the end of reset to
select hashing algorithm. HASH_MODE[0] is full duplex LED of port 0 after
reset if LED direct mode is selected. HASH_MODE[1] is link LED of port 7 after
reset if LED direct mode is selected.
Aging time selection of address table
An address tag in hashing table will be removed if this function is turned on and
its aging timer expires.
AGETIME[1] AGETIME[0]
0
0
1
1
0
1
0
1
12
Aging time
no aging
120s
240s (default)
480s
st
Description
layer and 2
nd
layer
(Advance Version)
IP178A