KSZ8041NLJ_10 MICREL [Micrel Semiconductor], KSZ8041NLJ_10 Datasheet - Page 8

• Manufacturer Part Number: KSZ8041NLJ_10
• Description: 10/100 Ethernet Transceiver with Extended Temperature Support
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
April 2010
Pin Number
20
21
22
23
24
25
26
27
28
29
30
Pin Name
CONFIG0
CONFIG1
NWAYEN
RX_ER /
RXER /
TXEN /
TX_EN
TXD0 /
TXD[0]
TXD1 /
TXD[1]
LED0 /
INTRP
CRS /
TXD2
TXD3
COL /
TXC
ISO
Type
Ipd/O
Ipd/O
Ipd/O
Ipu/O
Opu
O
I
I
I
I
I
(1)
Pin Function
MII Mode:
RMII Mode:
Config Mode:
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 Mode:
MII Mode:
RMII Mode:
MII Mode:
RMII Mode:
MII Mode:
RMII Mode:
MII Mode:
MII Mode:
MII Mode:
Config Mode:
MII Mode:
Config Mode:
LED Output:
Config Mode:
The LED0 pin is programmable via register 1Eh bits [15:14], and is defined as
follows.
LED mode = [10]
Reserved
LED mode = [11]
Reserved
LED mode = [00]
Link/Activity
No Link
Link
Activity
LED mode = [01]
Link
No Link
Link
Receive Error Output /
Receive Error Output /
The pull-up/pull-down value is latched as ISOLATE during
power-up / reset. See “Strapping Options” section for details.
Transmit Clock Output
Transmit Enable Input /
Transmit Enable Input
Transmit Data Input[0]
Transmit Data Input[0]
Transmit Data Input[1]
Transmit Data Input[1]
Transmit Data Input[2]
Transmit Data Input[3]
Collision Detect Output /
The pull-up/pull-down value is latched as CONFIG0 during
power-up / reset. See “Strapping Options” section for details.
Carrier Sense Output /
The pull-up/pull-down value is latched as CONFIG1 during
power-up / reset. See “Strapping Options” section for details.
Programmable LED0 Output /
Latched as Auto-Negotiation Enable (register 0h, bit 12) during
power-up / reset. See “Strapping Options” section for details.
Pin State
H
L
Toggle
Pin State
H
L
8
(4)
(5)
(4)
(5)
(4)
(4)
LED Definition
OFF
ON
Blinking
LED Definition
OFF
ON
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/
/
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M9999-040110-1.0
KSZ8041NLJ