KSZ8041TL_09 Datasheet, PDF (19/65 Pages) Micrel Semiconductor – 10Base-T/100Base-TX/100Base-FX Physical Layer Transceiver

Micrel, Inc.
Pin Number
27
28
29
30
31
32
Pin Name
RXDV /
CONFIG2
RXC
RXER /
ISO
GND
VDD_1.8
INTRP
33
TXC
34
TXEN
35
TXD0
36
TXD1
37
GND
38
TXD2
39
TXD3
40
COL /
CONFIG0
41
CRS /
CONFIG1
42
LED0 /
NWAYEN
KSZ8041TL/FTL/MLL
Type⁽¹⁾
Ipd/O
O
Ipd/O
Gnd
P
Opu
I/O
I
I
I
Gnd
I
I
Ipd/O
Ipd/O
Ipu/O
Pin Function
MII Mode:
Config. Mode:
Receive Data Valid Output /
The pull-up/pull-down value is latched as CONFIG2 during
power-up / reset. See “Strapping Options” section for details.
MII Receive Clock Output
MII Mode:
Config. Mode:
Receive Error Output /
The pull-up/pull-down value is latched as ISOLATE during
power-up / reset. See “Strapping Options” section for details.
Ground
1.8V digital V_DD
Interrupt Output: Programmable Interrupt Output
Register 1Bh is the Interrupt Control/Status Register for programming the
interrupt conditions and reading the interrupt status. Register 1Fh bit 9 sets the
interrupt output to active low (default) or active high.
MII Transmit Clock Output
MII Transmit Enable Input
MII Transmit Data Input[0]⁽³⁾
MII Transmit Data Input[1]⁽³⁾
Ground
MII Transmit Data Input[2]⁽³⁾ /
MII Transmit Data Input[3]⁽³⁾ /
MII Mode:
Config. Mode:
Collision Detect Output /
The pull-up/pull-down value is latched as CONFIG0 during
power-up / reset. See “Strapping Options” section for details.
MII Mode:
Config. Mode:
Carrier Sense Output /
The pull-up/pull-down value is latched as CONFIG1 during
power-up / reset. See “Strapping Options” section for details.
LED Output: Programmable LED0 Output /
Config. Mode:
Latched as Auto-Negotiation Enable (register 0h, bit 12)
during power-up / reset. See “Strapping Options” section for
details.
The LED0 pin is programmable via register 1Eh bits [15:14], and is defined as
follows.
LED mode = [00]
Link/Activity
Pin State
LED Definition
No Link
H
OFF
Link
L
ON
Activity
Toggle
Blinking
LED mode = [01]
Link
Pin State
No Link
H
Link
L
LED Definition
OFF
ON
LED mode = [10] Reserved
LED mode = [11] Reserved
December 2009
19
M9999-120909-1.2