
AX88180
24
ASIX ELECTRONICS CORPORATION
4.21 RXFULTHD--RX Buffer Full Threshold Register
Offset Address= 0xFC60 Default = 0x0000_0100
Field
Name
Type
Default
31:11
-
R
All 0’s
10:0
RXFULB
R/W
0x100
Description
Reserved
RX Full Threshold
This field defines the least capacity of RX buffer. AX88180 will cause RX
full if it remains capacity under this value. The unit is 16-byte.
4.22 MISC—Misc. Control Register
Offset Address= 0xFC68 Default = 0x0000_0013
Field
Name
Type
Default
31:6
-
R
All 0’s
5
WAKE_LNK
R/W
0
Description
Reserved
WAKE-UP by Link-Up Function
If this bit is enabled, MAC will drive wakeup pin whenever there is link-up
occurrence. The polarity of wakeup pin is according to bit0 of CMD
register.
1= enable
0= disable
WAKE-UP by Magic Packet
If this bit is enabled, MAC will drive wakeup pin whenever there is magic
packet detected by hardware. The polarity of wakeup pin is according to
bit0 of CMD register.
1= enable wake-up by magic packet
0 = disable
Reserved
Reserved
Software Reset MAC core
Driver set this bit to ‘0’ to reset core of MAC. The reset duration is
depended on whenever this bit is de-asserted by driver. There are only
RXCURT and RXBOUND registers will be cleared by this bit. Others
registers will not be affected
1 = in normal operation
0 = in reset status
4
WAKE_MAG
R/W
1
3:2
1
0
-
R/W
R/W
R/W
00
1
1
-
SRST_MAC
4.23 MACID0--MAC ID0 Register
Offset Address = 0xFC70 Default = 0x0000_0000
Field Name
Type
Default
31:16
-
R
All 0’s
15:0
MID15_0
R/W
0x0000
Description
Reserved.
MAC ID Address [15:0].
This field defines lower address bit15 to bit0 of MAC. The MACID0, MACID1
and MACID2 combine into 48-bit MAC address. The MAC address format is
[47:0] = {MACID2[15:0], MACID1[15:0], MACID0[15:0]}. If the EEPROM is
attached, this field will be auto-loaded from EEPROM after hardware reset.
4.24 MACID1--MAC ID1 Register
Offset Address = 0xFC74h Default = 0x0000_0000
Field
Name
Type
Default
31:16
-
R
All 0’s
15:0
MID31_16
R/W
0x0000
Description
Reserved.
MAC ID Address [31:16].