KSZ8893MQLI Datasheet, PDF (12/116 Pages) Micrel Semiconductor – Integrated 3-Port 10/100 Managed Switch with PHYs

Micrel, Inc.
KSZ8893MQL/MBL
Pin Number
9
10
11
12
Pin Name
NC
NC
NC
ADVFC
Type ⁽¹⁾
Ipd
Ipd
Ipu
Ipu
13
P2ANEN
Ipu
14
P2SPD
Ipd
15
P2DPX
Ipd
16
P2FFC
Ipd
17
NC
Opu
18
NC
Ipd
19
NC
Ipd
20
P2LED3
Opd
21
DGND
Gnd
22
VDDCO
P
23
LEDSEL1
Ipd
24
NC
O
25
P1LED3
Opd
Note:
1. P = Power supply.
Gnd = Ground.
O = Output.
Ipu = Input w/ internal pull-up.
Ipd = Input w/ internal pull-down.
Opu = Output w/ internal pull-up.
Opd = Output w/ internal pull-down.
February 2010
Description
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
1.2V digital VDD
Provides VOUT_1V2 to KSZ8893MQL’s input power pins: VDDAP
(pin 63), VDDC (pins 91 and 123), and VDDA (pins 38, 43, and
57). It is recommended the pin should be connected to 3.3V
power rail by a 100ohm resistor for the internal LDO
application.
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.
12
M9999-021110-1.6