Table A–5
XE–700 SBC memory map
XE–700 SBC memory map
Address Size
Description
Shadowing
00000H to 9FFFFH
640KB
DOS and extended BIOS RAM
A0000H to BFFFFH
128KB
Off Card Memory (shadowable)
C0000H to CBFFFH
48KB
Video BIOS
ENABLED
CC000H to D7FFFH
48KB
Off Card Memory
D8000H to DFFFFH
32KB
Extended BIOS Area when X jumper
installed or off card shadowable
ENABLED
E0000H to FFFFFH
128KB
System BIOS
10000H to FFFFFFFFH
4GB
Addressable Extended Memory
Switch settings
Table A
−
6 COM3/4 switches, Switch 2
COM3/4 switches, Switch 2
COM Port
Interface
Switch 4 Settings
RS–422/RS–485
no termination
Position 1 Off
Position 2 Off
COM3
RS–422/RS–485
with termination
Position 1 On*
Position 2 On*
RS–422/RS–485
no termination
Position 3 Off
Position 4 Off
COM4
RS–422/RS–485
with termination
Position 3 On*
Position 4 On*
* Default. These switches terminate the network. If
the XE–700 SBC is not at an end of the network, set
these switches to Off .
Table A–7
CPU clock speed switch, Switch 3
CPU clock speed switch, Switch 3
Position
Setting
66/133 CPU speed
1 Off*
2 On*
133 MHz
3 Off*
1 On
2 Off
66 MHz
3 On
* default
108
Содержание XE-700
Страница 18: ...Figure 2 1 XE 700 SBC component diagram top 18 ...
Страница 19: ...Figure 2 2 XE 700 SBC component diagram bottom 19 ...
Страница 20: ...Figure 2 3 XE 700 SBC dimensions 20 ...