ax88796 ASIX Electronics Corporation, ax88796 Datasheet - Page 38

• Manufacturer Part Number: ax88796
• Description: Non-pci 8/16-bit 10/100m Fast Ethernet Controller With Embedded Phy
• Manufacturer: ASIX Electronics Corporation

5.1.14 Test Register (TR) Offset 15H (Read)
5.1.15 General Purpose Input Register (GPI) Offset 17H (Read)
5.1.16 GPO and Control (GPOC) Offset 17H (Write)
FIELD
FIELD
FIELD
7:4
3:1
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
0
AX88796 L
RST_10B 10BASE-T in Reset : This signal indicates that 10BASE-T logic of internal PHY is in reset.
RST_TX
PPDSET Internal PHY Power Down Setting:
AUTOD Autonegotiation Done : This signal goes high whenever internal PHY autonegotiation has
I_LINK This register reflects internal PHY link status value. Logic one means link ok.
MPSET Media Set by Program : The signal is valid only when MPSEL is set to high.
MPSEL Media Priority Select :
NAME
NAME
NAME
RST_B Reset Busy : This signal indicates that internal PHY is in reset.
I_DPX This register reflects internal PHY duplex status value. Logic one means full duplex.
/GPO0 Default “0”. The register reflects to GPO[0] pin with inverted value.
I_SPD This register reflects internal PHY speed status value. Logic one means 100Mbps
GPI2
GPI1
GPI0
B
-
-
-
-
-
Reserved
100BASE-TX in Reset : This signal indicates that 100BASE-TX logic of internal PHY is in
reset.
completed. It will go low if autonegotiation has to restart.
Reserved
This register reflects GPI[2] input value. May connect to external PHY speed status.
This register reflects GPI[1] input value. May connect to external PHY duplex status.
This register reflects GPI[0] input value. May connect to external PHY link status.
Reserved
Reserved
Default “0”, Internal PHY is in normal operation mode
Write PPDSET to “1” force Internal PHY into power down mode and MAC will also power
down.
When MPSET is logic 0 , internal PHY is selected.
When MPSET is logic 1 , external MII PHY is selected.
MPSEL
Reserved
0
0
0
0
1
I_LINK
1
1
0
0
X
3-in-1 Local Bus Fast Ethernet Controller
GPI0
0
1
0
1
X
38
DESCRIPTION
DESCRIPTION
DESCRIPTION
Depend on MPSET bit
Media Selected
Internal PHY
Internal PHY
External MII PHY
Internal PHY
ASIX ELECTRONICS CORPORATION