KSZ8993M データシートの表示（PDF） - Micrel
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KSZ8993M Datasheet PDF : 86 Pages
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Micrel, Inc.
KSZ8993M/ML
Pin Number
8
9
10
11
12
Pin Name
VDDIO
NC
NC
NC
ADVFC
13
P2ANEN
14
P2SPD
15
P2DPX
16
P2FFC
17
NC
18
NC
19
NC
20
P2LED3
21
DGND
22
VDDC/VOUT_1
V8
23
LEDSEL1
24
NC
25
P1LED3
Note:
1. P = Power supply.
Gnd = Ground.
O = Output.
Ipu = Input w/ internal pull-up.
Ipd = Input w/ internal pull-down.
Opu = Output with internal pull-up.
Type (1)
P
Ipd
Ipd
Ipu
Ipu
Ipu
Ipd
Ipd
Ipd
Opu
Ipd
Ipd
Opd
Gnd
P
Ipd
O
Opd
Description
3.3V digital VDD
No connect
No connect
No connect
1 = advertise the switch’s flow control capability via auto
negotiation.
0 = will not advertise the switch’s flow control capability via
auto negotiation.
1 = enable auto negotiation on port 2
0 = disable auto negotiation on port 2
1 = force port 2 to 100BT if P2ANEN = 0
0 = force port 2 to 10BT if P2ANEN = 0
1 = port 2 default to full duplex mode if P2ANEN = 1 and auto
negotiation fails. Force port 2 in full duplex mode if P2ANEN
= 0.
0 = port 2 default to half duplex mode if P2ANEN = 1 and
auto negotiation fails. Force port 2 in half duplex mode if
P2ANEN = 0.
1 = always enable (force) port 2 flow control feature
0 = port 2 flow control feature enable is determined by auto
negotiation result.
No connect
No connect
No connect
Port 2 LED indicator
Note: Internal pull-down is weak; it will not turn ON the LED.
See description in pin 4.
Digital ground
VDDC: For KSZ8993M, this is an input power pin for the 1.8V
digital core VDD.
VOUT_1V8: For KSZ8993ML, this is a 1.8V output power pin to
supply the KSZ8993ML’s input power pins: VDDAP (pin 63),
VDDC (pins 91 and 123), and VDDA (pins 38, 43, and 57).
LED display mode select
See description in pins 1 and 4.
No connect
Port 1 LED indicator
Note: An external 1K pull-down is needed on this pin if it is
connected to a LED. The 1K resistor will not turn ON the
LED.
See description in pin 1.
Opd = Output internal pull-down.
October 2008
11
M9999-020606
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