Micrel
Pin Number
28
29
30
Pin Name
LED2/
DUPLEX
Type (Note 1)
Ipu/O
KSZ8001
Pin Function
LED mode = 01
Speed
Pin State
LED Definition
10BT
H
Off
100BT
L
On
LED mode = 10
100Mbps Link Pin State
LED Definition
No Link
H
Off
Link
L
On
Programmable LED Output 2
Configuration Mode: Latched as DUPLEX (register 0h, bit 8) during power up
/ reset. See “Strapping Options” Section for details. Active Low. The LED2
pin is also programmable via register 1eh.
LED3/
NWAYEN
Ipu/O
LED mode = 00
Duplex
Pin State
LED Definition
Half
H
Off
Full
L
On
LED mode = 01
Full Duplex/Col Pin State
LED Definition
Half
H
Off
Full
L
On
Collision
-
Toggle
LED mode = 10
Duplex
Pin State
LED Definition
Half
H
Off
Full
L
On
Programmable LED Output 3
Configuration Mode: Latched as ANEG_EN (register 0h, bit 12) during power
up / reset. See “Strapping Options” Section for details. Active Low. The
LED3 pin is also programmable via register 1eh.
PD#
Ipu
LED mode = 00
Collision
Pin State
No Collision
H
Collision
L
LED mode = 01
Activity
Pin State
Activity
-
LED mode = 10
Activity
Pin State
Activity
-
Chip power down input (active low)
1 (high) = Normal operation
0 (low) = Power down
LED Definition
Off
On
LED Definition
Toggle
LED Definition
Toggle
June 2009
Revision 1.04
8