KSZ9031RNX Просмотр технического описания (PDF) - Micrel
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KSZ9031RNX Datasheet PDF : 82 Pages
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Micrel, Inc.
KSZ9031RNX
Pin Description (Continued)
Pin Number
Pin Name
Type(2)
16
DVDDH
P
Pin Function
3.3V, 2.5V, or 1.8V digital VDD_I/O
LED1 output: Programmable LED1 output
Config mode:
The voltage on this pin is sampled and latched during the power-
up/reset process to determine the value of PHYAD[0]. See the
Strapping Options section for details.
PME_N output:
Programmable PME_N output (pin option 1). This pin function
requires an external pull-up resistor to DVDDH (digital VDD_I/O) in a
range from 1.0kΩ to 4.7kΩ. When asserted low, this pin
signals that a WOL event has occurred.
This pin is not an open-drain for all operating modes.
The LED1 pin is programmed by the LED_MODE strapping option (Pin 41), and is
defined as follows.
Single-LED Mode
LED1/
Activity
Pin State LED Definition
PHYAD0/
No activity
H
OFF
17
I/O
Activity (RX, TX)
Toggle Blinking
PME_N1
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 10Mbps link and activity.
18
DVDDL
P
1.2V digital VDD
19
TXD0
I
RGMII mode: RGMII TD0 (Transmit Data 0) input
20
TXD1
I
RGMII mode: RGMII TD1 (Transmit Data 1) input
21
TXD2
I
RGMII mode: RGMII TD2 (Transmit Data 2) input
22
TXD3
I
RGMII mode: RGMII TD3 (Transmit Data 3) input
23
DVDDL
P
1.2V digital VDD
24
GTX_CLK
I
RGMII mode:RGMII TXC (Transmit Reference Clock) input
25
TX_EN
I
RGMII mode:RGMII TX_CTL (Transmit Control) input
26
DVDDL
P
1.2V digital VDD
RXD3/
RGMII mode: RGMII RD3 (Receive Data 3) output
27
MODE3
I/O Config mode: The pull-up/pull-down value is latched as MODE3 during power-
up/reset. See the Strapping Options section for details.
RXD2/
RGMII mode: RGMII RD2 (Receive Data 2) output
28
MODE2
I/O Config mode: The pull-up/pull-down value is latched as MODE2 during power-
up/reset. See the Strapping Options section for details.
May 14, 2015
11
Revision 2.2
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