ax88790 ASIX Electronics Corporation, ax88790 Datasheet - Page 18

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

4.2 PCMCIA Function Configuration Register Set of MODEM
Tab – 15 PCMCIA Function Configuration Register Mapping of MODEM
4.2.1 Configuration Option Register of MODEM (MCOR) Offset 3E0H (Read/Write)
FIELD
5:0
REGISTER
7
6
MIOBASE0
MIOBASE1
MCOR
MCSR
AX88790 L
R/W/C
R/W
R/W
R/W
Software Reset
CONFIGURATION OPTION REGISTER
CONFIGURATION AND STATUS REGISTER
I/O BASED REGISTER 0
I/O BASED REGISTER 1
Level IRQ
Function Configuration Index
Assert this bit will reset the MODEM function of AX88790. Return a 0 to this bit will
leave the MODEM 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, Bit4 : Reserved
Bit 3 : MINT route to STSCHG#
Bit 2 : MINT route to IREQ# (Enable IREQ# Routing)
Bit 1 : Enable Base and Limit Registers
Bit 0 : Enable Function
If bit 0 of MCOR is set to 0, this bit is ignored.
If both bit 0 and bit 2 of MCOR are set to 1 and this bit is set to 1, the MODEM will route
interrupt request to STSCHG# signal. If this bit is set to 0, the MODEM will generate
interrupt request via IREQ# line.
If bit 0 of MCOR is set to 0, this bit is ignored.
If bit 0 of MCOR is set to 1 and this bit is set to 1, the MODEM will generate interrupt
request via IREQ# signal. If this bit is set to 0, the MODEM will not generate interrupt
request via IREQ# line.
If bit 0 of MCOR is set to 0, this bit is ignored.
If bit 0 of MCOR 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 MODEM 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 MODEM function is disabled.
If this bit is set to 1, the MODEM function is enabled.
3-in-1 PCMCIA Fast Ethernet Controller
NAME
18
DESCRIPTION
ASIX ELECTRONICS CORPORATION
OFFSET
3EAH
3ECH
3E0H
3E2H