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參數資料
| 型號： | IP175 |
| 英文描述： | 5-port 10/100M Single Chip Switch |
| 中文描述： | 5端口10/100M自適應單片開關 |
| 文件頁數： | 19/29頁 |
| 文件大?。?/td> | 202K |
| 代理商： | IP175 |
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IP175
EEPROM Register Description
Offset
Default Value Corresponding Pin
00H[15:0]
55AA
Preliminary, Specification
subject to change without notice
19
IP175-DS-P05
Jul. 19, 2002
Description
-
EEEPROM enable register
This register should be filled with 55AA. IP175 will check the
specified pattern to confirm a valid EEPROM exists. The initial
setting is updated after power on reset only if the specified
pattern 55AA is found.
LED output selection register
01H[15:2]
01H[1:0]
14’b0
11
-
Reserved
LED_SEL, LED mode selection
LED_SEL[1:0]=2’b00: LED mode 0,
LED_SEL[1:0]=2’b01: LED mode 1,
LED_SEL[1:0]=2’b10: LED mode 2,
LED_SEL[1:0]=2’b11: LED mode 3
Please refer to pin description for detail LED definition.
LED_SEL[1:0]
Switch control register 1
02H[15:13]
02H[12:11]
3’b0
00
-
Reserved
BP_KIND, Backpressure type selection
It is valid only if Bk_en (02H[4]) is set to 1’b1.
00: carrier base backpressure
01: collision base backpressure with hashing
10: collision base backpressure without hashing
Reserved
Reserved
X_EN, IEEE 802.3x flow control enable
1: enable
0:disable
Reserved
BK_EN, Backpressure enable
1: enable,
0: disable
MII_FC_EN, External MII port flow control enable
1: enable,
0:disable
Broadcast storm enable
1: enable
Drop the incoming packet if the number of queued broadcast
packet is over the threshold. The threshold is defined in register
0AH[14:13].
0: disable
Reserved
BP_KIND[1:0]
02H[10]
02H[8]
02H[7]
0
0
1
-
-
X_EN
(LED_LINK[0])
02H[6:5]
02H[4]
2’b0
1
-
BK_EN
(LED_FULL[1])
02H[3]
0
(LED_ACT[0])
02H[2]
0
BF_STM_EN
(LED_ACT[2])
02H[1:0]
2’b0
-
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