ax88790 ASIX Electronics Corporation, ax88790 Datasheet - Page 16

• Manufacturer Part Number: ax88790
• Description: Pcmcia 10/100m Fast Ethernet Controller With Embedded Phy
• Manufacturer: ASIX Electronics Corporation

4.1.1 Configuration Option Register of LAN (LCOR) Offset 3C0H (Read/Write)
FIELD
5:0
7
6
AX88790 L
R/W/C
R/W
R/W
R/W
Software Reset
Level IRQ
Function Configuration Index
Assert this bit will reset the LAN function of AX88790. Return a 0 to this bit will leave the
LAN function of AX88790 in a post-reset state as same as that following hardware reset.
The value of this bit is 0 at power-on.
This bit should be set to 1; the AX88790 always generates Level Mode Interrupt.
These six bits are used to indicate entry of the card configuration table locate in the CIS.
The default value is 0
.
On multifunction PC Card,
Bit 5, Bit 4, Bit 3 : MODEM I/O base registers
Bit 5
Bit 2 : Enable IREQ# Routing
Bit 1 : Enable Base and Limit Registers
Bit 0 : Enable Function
If bit 0 of LCOR is set to 0, this bit is ignored.
If bit 0 of LCOR is set to 1 and this bit is set to 1, the LAN will generate interrupt request
via IREQ# signal. If this bit is set to 0, the LAN will not generate interrupt request via
IREQ# line.
If bit 0 of LCOR is set to 0, this bit is ignored.
If bit 0 of LCOR is set to 1 and this bit is set to 1,only I/O addresses that are qualified by
the Base and Limit registers are passed to LAN function. If this bit is set to 0,all I/O
addresses are passed to LAN function.
If this bit is set to 0, the LAN function is disabled.
If this bit is set to 1, the LAN function is enabled.
0
0
0
0
1
1
1
1
Bit 4
0
0
1
1
0
0
1
1
Bit 3
3-in-1 PCMCIA Fast Ethernet Controller
0
1
0
1
0
1
0
1
16
LAN I/O base
300H
320H
340H
360H
380H
200H
220H
240H
DESCRIPTION
ASIX ELECTRONICS CORPORATION
MODEM I/O base
Decided by MIOBASE registers
2f8H
3e8H
2e8H
Decided by MIOBASE registers
2f8H
3e8H
2e8H