ksz8041tl-ftl Micrel Semiconductor, ksz8041tl-ftl Datasheet - Page 11

• Manufacturer Part Number: ksz8041tl-ftl
• Description: 10base-t/100base-tx/100base-fx Physical Layer Transceiver
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
April 2007
Pin Number
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
VDDIO_3.3
VDDIO_3.3
Pin Name
CONFIG2
CONFIG0
CONFIG1
DUPLEX
CRSDV /
VDD_1.8
RX_ER /
RXD[0] /
TXD[0] /
TXD[1] /
RXDV /
RXER /
RXD0 /
TXEN /
TX_EN
TXD0 /
TXD1 /
INTRP
SYNC
CRS /
TXD2
TXD3
COL /
GND
GND
GND
RXC
TXC
ISO
RX
TX
Type
Ipu/O
Ipd/O
Ipd/O
Ipd/O
Ipd/O
Gnd
Gnd
Opu
Gnd
I/O
O
P
P
P
I
I
I
I
I
(1)
Pin Function
MII Mode:
RMII Mode:
SMII Mode:
Config Mode:
Ground
3.3V digital V
3.3V digital V
MII Mode:
RMII Mode:
Config Mode:
MII Mode:
MII Mode:
RMII Mode:
Config Mode:
Ground
1.8V digital V
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 Back-to Back Mode:
MII Mode:
RMII Mode:
MII Mode:
RMII Mode:
SMII Mode:
MII Mode:
RMII Mode:
SMII Mode:
Ground
MII Mode:
MII Mode:
MII Mode:
Config Mode:
MII Mode:
Config Mode:
DD
DD
DD
Receive Data and Control
Receive Data Output[0]
Receive Data Output[0]
Latched as DUPLEX (register 0h, bit 8) during power-up /
reset. See “Strapping Options” section for details.
Receive Data Valid Output /
Carrier Sense/Receive Data Valid Output /
The pull-up/pull-down value is latched as CONFIG2 during
power-up / reset. See “Strapping Options” section for details.
Receive Clock Output
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 Enable Input /
Transmit Enable Input
Transmit Data Input[0]
Transmit Data Input[0]
Transmit Data and Control
Transmit Data Input[1]
Transmit Data Input[1]
SYNC Clock Input
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.
11
Transmit Clock Output
Transmit Clock Input
(5)
(6)
(5)
(6)
(5)
(5)
(2)
(3)
/
/
/
/
/
/
/
/
(4)
(7)
/
KSZ8041TL/FTL
M9999-042707-1.1