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KS8993M Datasheet(PDF) 11 Page - Micrel Semiconductor

Part No. KS8993M
Description  Integrated 3-Port 10/100 Managed Integrated 3-Port 10/100 Managed
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Maker  MICREL [Micrel Semiconductor]
Homepage  http://www.micrel.com
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KS8993M Datasheet(HTML) 11 Page - Micrel Semiconductor

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Micrel, Inc.
KS8993M/ML/MI
April 2005
11
M9999-041205
Pin Number
Pin Name
Type
(1)
Description
26
NC
O
No connect
27
HWPOVR
Ipd
Hardware pin overwrite
0 = Disable. All strap-in pins configurations are overwritten by
the EEPROM configuration data
1 = Enable. All strap-in pins configurations are overwritten by
the EEPROM configuration data, except for register 0x2C bits
[7:5], (port 2: auto-negotiation enable, force speed, force
duplex).
28
P2MDIXDIS
Ipd
Port 2 Auto MDI/MDI-X
PD (default) = enable
PU = disable
29
P2MDIX
Ipd
Port 2 MDI/MDI-X setting when auto MDI/MDI-X is disabled.
PD (default) = MDI-X (transmit on TXP2 / TXM2 pins)
PU = MDI, (transmit on RXP2 / RXM2 pins)
30
P1ANEN
Ipu
1 = enable auto negotiation on port 1
0 = disable auto negotiation on port 1
31
P1SPD
Ipd
1 = force port 1 to 100BT if P1ANEN = 0
0 = force port 1 to 10BT if P1ANEN = 0
32
P1DPX
Ipd
1 = port 1 default to full duplex mode if P1ANEN = 1 and auto
negotiation fails. Force port 1 in full-duplex mode if P1ANEN
= 0.
0 = port 1 default to half duplex mode if P1ANEN = 1 and auto
negotiation fails. Force port 1 in half duplex mode if P1ANEN
= 0.
33
P1FFC
Ipd
1 = always enable (force) port 1 flow control feature
0 = port 1 flow control feature enable is determined by auto
negotiation result.
34
NC
Ipd
No connect
35
NC
Ipd
No connect
36
PWRDN
Ipu
Chip power-down input (active low)
37
AGND
Gnd
Analog ground
38
VDDA
P
1.8V analog VDD
39
AGND
Gnd
Analog ground
40
MUX1
I
Factory test pin - float for normal operation
41
MUX2
I
Factory test pin - float for normal operation
42
AGND
Gnd
Analog ground
43
VDDA
P
1.8V analog VDD
44
FXSD1
I
Fiber signal detect/factory test pin
Note:
1. P = Power supply.
Gnd = Ground.
I = Input.
O = Output.
Ipu = Input w/ internal pull-up.
Ipd = Input w/ internal pull-down.


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