4I33 9
4I33 OPERATION
CONFIGURATION OPTIONS
BOOT PROM ENABLE/DISABLE
BOOT PROM ADDRESS/SIZE:
C000H/64K
D000H/64K
C000H/32K
C800H/32K
D000H/32K
D800H/32K
C000H/16K
C400H/16K
C800H/16K
CC00H/16K
D000H/16K
D400H/16K
D800H/16K
DC00H/16K
C000H/PAGE
C400H/PAGE
C800H/PAGE
CC00H/PAGE
D000H/PAGE
D400H/PAGE
D800H/PAGE
DC00H/PAGE
AUTO MEDIA DETECT
The configuration program lets you select an ‘auto’ mode for media type. The
auto media detect mode operates as follows: At power up, the RTL8019 MAC chip
starts up in 10BaseT mode and senses the 10BaseT link status. If the link status is
good, it remains in 10BaseT mode, if the link status is bad, it will switch to BNC mode.
It only does this at startup, so it will never switch back to 10BaseT even if the link
becomes operational some time after power up.
DEFAULT CONFIGURATION
The default 4I33 configuration as shipped from MESA is as follows:
IO ADDRESS
IRQ
MEDIA
300H
5
AUTO
The default 4I33T configuration as shipped from MESA is as follows:
IO ADDRESS
IRQ
MEDIA
300H
5
10BASET
.
