KSZ8893-MQL Micrel Semiconductor, Inc., KSZ8893-MQL Datasheet - Page 13

• Manufacturer Part Number: KSZ8893-MQL
• Description: Integrated 3-Port 10/100 Managed Switch with PHYs
• Manufacturer: Micrel Semiconductor, Inc.

Micrel
November 2005
Note:
1. P = Power supply.
Pin Number
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
Opu = Output w/ internal pull-up.
Opd = Output w/ internal pull-down.
Gnd = Ground.
O = Output.
Ipu = Input w/ internal pull-up.
Ipd = Input w/ internal pull-down.
Pin Name
NC
NC
NC
ADVFC
P2ANEN
P2SPD
P2DPX
P2FFC
NC
NC
NC
P2LED3
DGND
VDDC /
VOUT_1V2
LEDSEL1
NC
P1LED3
Type
Ipd
Ipd
Ipu
Ipu
Ipu
Ipd
Ipd
Ipd
Opu
Ipd
Ipd
Opd
Gnd
P
Ipd
O
Opd
(1)
13
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 V
(pin 63), V
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.
DDC
OUT_1V2
(pins 91 and 123), and V
to KSZ8893MQL’s input power pins: V
DDA
KSZ8893MQL/MQLI
(pins 38, 43, and
M9999-111705
DDAP