AX88179
USB 3.0 to 10/100/1000M Gigabit Ethernet Controller
2.2 Hardware Setting For Operation Mode and Multi-Function Pins
The following hardware settings define the desired operation mode and some multi-function pins. The logic level shown on
setting pin below is loaded from the chip I/O pins during power on reset based on the setting of the pin’s pulled-up (as logic
‘1’) or pulled-down (as logic ‘0’) resister on the schematic.
EEPROM Offset 05h or eFuse Offset 18h, Flag[4]: Defines the multi-function pin GPIO_0 / PME
GPIO_0 is a general purpose I/O normally controlled by vendor commands. Users can change this pin to operate as a PME
(Power Management Event) for remote wake up purpose. Please refer to Section 4.1.2 “Flag” of bit 4 (PME_PIN).
GPIO_1 pin: Determines whether this chip will go to Default WOL Ready Mode after power on reset. The WOL stands
for Wake-On-LAN.
GPIO_1
Description
Normal operation mode (default, see Note 1).
Enable Default WOL Ready Mode. Notice that the external pulled-up resistor must be 4.7Kohm.
For more details, please refer to APPENDIX A. Default Wake-On-LAN (WOL) Ready Mode
0
1
Note 1: This is the default with internal pulled-down resistor and doesn’t need an external one.
GPIO_2 pin: Determines whether SSTX+ swaps with SSTX- and SSRX+ swaps with SSRX- for USB3.0 PHY.
GPIO_2
Description
0
1
No swapping (default, see Note 1).
Enable swapping. Notice that the external pulled-up resistor must be 4.7Kohm.
MFA_3 ~ MFA_0 pins: There are 4 multi-function pins for LED display purpose and as GPIO controlled by vendor
command PIN Control Register MFA_EN (Section 6.2.2.23).
Section
4.1.6
LED_3
Section
6.2.1.9 &6.2.1.10
MFAIO_3
PIN Name
Default definition
MFA_3
LED_USB indicator
(Super-speed)
MFA_2
MFA_1
MFA_0
Programmable LED
(Link 10/100/1000+Active)
Programmable LED
(Link 10/100/1000)
Programmable LED
(Active)
LED_2
LED_1
LED_0
MFAIO_2
MFAIO_1
MFAIO_0
Table 2
: MFA_3 ~ MFA_0 pin configuration
11
Copyright © 2011-2012 ASIX Electronics Corporation. All rights reserved.
ASIX [ ASIX ELECTRONICS CORPORATION ]
