參數(shù)資料
型號(hào): IP178A
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-Port 10/100 Ethernet Integrated Switch
中文描述: 8端口10/100以太網(wǎng)集成開關(guān)
文件頁(yè)數(shù): 32/44頁(yè)
文件大?。?/td> 1267K
代理商: IP178A
(Advance Version)
IP178A
EEPROM Register Description
(continued)
Offset
Default Value Corresponding Pin
02H[3]
0
02H[2]
0
Description
-
Reserved
Bf_stm_en, Broadcast storm enable
1: enable
IP178A drops the incoming packet if the number of broadcast
packet in queue is over the threshold.
0: disable
Reserved
BF_STM_EN
02H[1:0]
Switch control register 2
03H[15:13]
03H[12]
2’b0
-
3’b0
1
-
Reserved
Duplex of external MII port
1: full (default), 0: half
Speed of external MII port
1: 10M (default), 0: 100M
Flow control of external MII port
1: on, 0: off (default)
External MII port enable
1: enable, 0: disable (default)
Reserved
Drop16
,
A port will drop the transmitting packet after 16 consecutive
collisions if this function is turned on.
1: drop, 0: not drop
It is hashing algorithm selection for 1
st
layer and 2
nd
layer at the
end of reset.
00: direct and CRC(default)
01: direct and CRC
10: CRC and CRC
11: reserved
Agetime, Aging time of address table selection
An address tag in hashing table will be removed if this function
is turned on and its aging timer expires.
03H[4:3]
Aging time
00
no aging
01
120s
10
240s
11
480s
ALLPASS
IP178A forwards all packets. It is for testing only. The default
value must be adopted for normal operation.
1: turn on, 0: turn off
MODBCK, Turn on modified back off algorithm
The maximum back off period is limited to 8-slot time if this
function is turned on.
1: turn on, 0: turn off
Reserved
MII_P0_FULL
03H[11]
1
MII_P0_SPEED
03H[10]
0
MII_P0_FLOW_CTL
03H[9]
0
MII_P0_EXT_EN
03H[8]
03H[7]
0
0
-
DROP16
03H[6:5]
00
HASH_MODE[1:0]
03H[4:3]
10
AGETIME[1:0]
note
default
03H[2]
0
ALLPASS
03H[1]
1
MODBCK
03H[0]
0
-
Preliminary, Specification subject to change without notice
IP178A-DS-P05
Sep. 09, 2002
32
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