Ampro Corporation 486E - Manual (Page 98)

Little Board™/486e Technical Manual
2–82
Byte-Wide Socket Configuration
The byte-wide socket, S0 can be configured for its starting address and the size of the memory block
in which it appears to the processor, or it can be disabled. Whether or not the socket should be
enabled during the boot process can also be specified.
Table 2–58 lists the socket address configuration options that are available.
Table 2–58. Byte-Wide Socket Configuration
Size Address
Disabled None
64K bytes D0000h – DFFFFh
64K bytes E0000h – EFFFFh
128K bytes D0000h – EFFFFh
Ampro provides several extended BIOS function calls that allow software control of the byte wide
socket state such as:
! Enable/disable
! Programming control for flash EPROMs
Contact Ampro Technical Support for additional information regarding these services.
Hardware jumpers can also be set to configure the byte-wide socket for any device installed in S0.
Jumper positions are provided earlier in this chapter.
The byte wide socket has no hardware provisions for paging large memory devices, and is not
recommended for SSD (64K byte maximum).
Serial Boot Loader Enable
This parameter enables or disables the Serial Boot Loader option in the Ampro ROM BIOS. The
serial boot loader allows booting from either of the onboard serial ports much in the same way you
would boot from a local hard disk or from a LAN. A description of the Serial Boot Loader is
provided in the Ampro Common Utilities manual (see SERLOAD and SERPROG). If the Serial Boot
Loader is used, set this parameter to Enabled.
Watchdog Timer Configuration
This parameter allows the time duration of the watchdog timer to be set for monitoring the boot
process. It can be set to 30, 60, or 90 seconds, or it can be disabled. A description of the related
WATCHDOG utility program can be found in the Ampro Common Utilities manual.
Local Bus Video Display
If you will be using a CRT display, select CRT. If you will be using a flat panel display, select FP. If
you will be using both types of display, select FP&CRT. If you select FP or FP&CRT, select a flat
panel display type (see below).