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| 型号： | IP178CLF |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8 Port 10/100 Ethernet Integrated Switch |
| 中文描述： | 8端口10/100以太网集成开关 |
| 文件页数： | 19/91页 |
| 文件大小： | 1244K |
| 代理商： | IP178CLF |
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IP178C
Preliminary Data Sheet
Pin description
(continued)
Copyright
2004, IC Plus Corp.
19/91
October 27, 2005
IP178C-DS-R09
Pin no.
Basic operation parameter setting of switch
87
LDPS_DIS
Label
Type
Description
IPL1
Disable link down power saving mode
0: enable link down power saving mode (default)
1: disable link down power saving mode
LDPS_DIS is full duplex LED of port 0 after reset.
The function is valid only if pin 53 EXTMII_EN is pulled low.
Ability for detecting MLT3 (for 10 Mbps switch to 100 Mbps)
0: disable MLT3 detection ability (default)
1: enable MLT3 detection ability
MLT3_DET is link LED of port 7 after reset.
Broadcast storm enable
1: enable, 0: disable (default)
A port begins to drop packets if it receives broadcast packets
more than the threshold defined in MII register 31.9[15:14]
bq_stm_thr_sel [1:0] or EEPROM register 83[7:6].
Aggressive back off enable
IP178C adopts modified (aggressive) back off algorithm if this
function is enabled. The maximum back off period is limited to
8-slot time. It makes IP178C have higher transmission priority in
a collision event.
1: aggressive mode enable (default),
0: standard back off
It is link LED of port 4 after reset.
IPH1 Aging enable
1: enable 300s aging timer (default)
0: disable aging function
The function is valid only if pin 53 EXTMII_EN is pulled low.
IPL1
Select SCA function
Function selection for PIN_84
0: PIN_84 is LOW_10M_DIS (default)
1: PIN_84 is SCA_DIS
IPH1
/O
1: enable IEEE802.3x & back pressure (default),
0: disable IEEE802.3x & back pressure
The function is valid only if pin 53 EXTMII_EN is pulled low.
89
MLT3_DET
IPL1
91
BF_STM_EN
IPL1
93
MODBCK
IPH1
/ O
76
AGING
73
SEL_SCA
75
X_EN
Flow control enable
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