KSZ9021RL View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
KSZ9021RL Datasheet PDF : 59 Pages
| |||
Micrel, Inc.
Pin Number
17
Pin Name
LED1 /
PHYAD0
18
DVDDL
19
TXD0
20
TXD1
21
TXD2
22
TXD3
23
DVDDL
24
GTX_CLK
25
TX_EN
26
DVDDL
27
RXD3 /
MODE3
28
RXD2 /
MODE2
29
VSS
30
DVDDL
31
RXD1 /
MODE1
February 13, 2014
KSZ9021RL/RN
Type(1)
I/O
Pin Function
LED Output: Programmable LED1 Output /
Config Mode: The pull-up/pull-down value is latched as PHYAD[0] during
power-up/reset. See “Strapping Options” section for details.
The LED1 pin is programmed by the LED_MODE strapping option (pin 41), and is
defined as follows.
Single LED Mode
Activity
No Activity
Activity (RX, TX)
Pin State
H
Toggle
LED Definition
OFF
Blinking
Tri-color Dual LED Mode
Link/Activity
Link off
1000 Link / No Activity
1000 Link / Activity (RX, TX)
100 Link / No Activity
100 Link / Activity (RX, TX)
10 Link / No Activity
10 Link / Activity (RX, TX)
Pin State
LED2 LED1
H
H
L
H
Toggle H
H
L
H
Toggle
L
L
Toggle Toggle
LED Definition
LED2 LED1
OFF
OFF
ON
OFF
Blinking OFF
OFF
ON
OFF
Blinking
ON
ON
Blinking Blinking
For Tri-color Dual LED Mode, LED1 works in conjunction with LED2 (pin 15) to
indicate 10 Mbps Link and Activity.
P
1.2V digital VDD
I
RGMII Mode: RGMII TD0 (Transmit Data 0) Input
I
RGMII Mode: RGMII TD1 (Transmit Data 1) Input
I
RGMII Mode: RGMII TD2 (Transmit Data 2) Input
I
RGMII Mode: RGMII TD3 (Transmit Data 3) Input
P
1.2V digital VDD
I
RGMII Mode: RGMII TXC (Transmit Reference Clock) Input
I
RGMII Mode: RGMII TX_CTL (Transmit Control) Input
P
1.2V digital VDD
I/O RGMII Mode: RGMII RD3 (Receive Data 3) Output /
Config Mode: The pull-up/pull-down value is latched as MODE3 during
power-up/reset. See “Strapping Options” section for details.
I/O RGMII Mode: RGMII RD2 (Receive Data 2) Output /
Config Mode: The pull-up/pull-down value is latched as MODE2 during
power-up/reset. See “Strapping Options” section for details.
Gnd Digital ground
P
1.2V digital VDD
I/O RGMII Mode: RGMII RD1 (Receive Data 1) Output /
Config Mode: The pull-up/pull-down value is latched as MODE1 during
power-up/reset. See “Strapping Options” section for details.
18
Revision 1.2
Share Link: 