SI-50170 datasheet(13/54 Pages) MICREL

13 / 54 page

Micrel, Inc.

KSZ8041NL/RNL

September 2010

M9999-090910-1.4

Pin Description – KSZ8041NL (Continued)

Pin Number

Pin Name

Type

(1)

Pin Function

LED1 /

SPEED

Ipu/O

LED Output:

Programmable LED1 Output /

Config Mode:

Latched as SPEED (register 0h, bit 13) during power-up / reset.

See “Strapping Options” section for details.

The LED1 pin is programmable via register 1Eh bits [15:14], and is defined as

follows.

LED mode = [00]

Speed

Pin State

LED Definition

10BT

OFF

100BT

LED mode = [01]

Activity

Pin State

LED Definition

No Activity

OFF

Activity

Toggle

Blinking

LED mode = [10]

Reserved

LED mode = [11]

Reserved

RST#

Chip Reset (active low)

PADDLE

GND

Gnd

Ground

Notes:

1. P = Power supply.

Gnd = Ground.

I = Input.

O = Output.

I/O = Bi-directional.

Ipd = Input with internal pull-down (40K +/-30%).

Ipu = Input with internal pull-up (40K +/-30%).

Opu = Output with internal pull-up (40K +/-30%).

Ipu/O = Input with internal pull-up (40K +/-30%) during power-up/reset; output pin otherwise.

Ipd/O = Input with internal pull-down (40K +/-30%) during power-up/reset; output pin otherwise.

2. MII Rx Mode: The RXD[3..0] bits are synchronous with RXCLK. When RXDV is asserted, RXD[3..0] presents valid data to MAC through the

MII. RXD[3..0] is invalid when RXDV is de-asserted.

3. RMII Rx Mode: The RXD[1:0] bits are synchronous with REF_CLK. For each clock period in which CRS_DV is asserted, two bits of

recovered data are sent from the PHY.

4. MII Tx Mode: The TXD[3..0] bits are synchronous with TXCLK. When TXEN is asserted, TXD[3..0] presents valid data from the MAC through

the MII. TXD[3..0] has no effect when TXEN is de-asserted.

5. RMII Tx Mode: The TXD[1:0] bits are synchronous with REF_CLK. For each clock period in which TX_EN is asserted, two bits of data are

received by the PHY from the MAC.

SI-50170 Datasheet(PDF) 13 Page - Micrel Semiconductor

SI-50170 Datasheet(HTML) 13 Page - Micrel Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

Datasheet Download

Link URL