System 6-18
6.07 BIOS (FLASH EPROM & EPROM)
The Flash EPROM BIOS and the EPROM BIOS are factory installed. The Flash
EPROM BIOS appears on Diagram 6-2 at U50 (#11) and the EPROM BIOS at U49
(#12).
By default the TEK933 boots from the Flash EPROM BIOS. This is set by the J14
Emergency BIOS boot selection jumper (# 9 on Diagram 6-2), as follows:
•
J14 : Selects the BIOS to boot from:
- Shorted: Emergency boot (from EPROM BIOS),
- Or open: Normal boot (from Flash EPROM BIOS): This is the initial setting.
The pin-out for J14 appears below:
TABLE 6-4:
Emergency BIOS Boot (J14) - Pin-Out
Pin Number
Signal
1
EMER*
2
GND
* Active low signal
Summary of Contents for PCI-993
Page 31: ...Jumper Locations Configuration 2 7...
Page 32: ...Jumper Locations Configuration 2 8 TABLE 2 1c Jumper Settings W13 W18 W22...
Page 33: ...Jumper Locations Configuration 2 9 TABLE 2 1d Jumper Settings W24 W27 J14...
Page 36: ...Connector Locations Pin Out 4 3 DIAGRAM 4 1 Connector Locations...
Page 56: ...System 6 3 DIAGRAM 6 1 System Components Location Bottom of Board...
Page 57: ...System 6 5 DIAGRAM 6 2 System Components Location Top of Board...
Page 172: ...VT100 Mode 18 3 DIAGRAM 18 1 VT100 Full Setup DIAGRAM 18 2 VT100 Partial Setup...
Page 188: ...TEK933 Board Diagrams C 3 DIAGRAM C 1 TEK933 Assembly Top...
Page 189: ...TEK933 Board Diagrams C 5 DIAGRAM C 2 TEK933 Assembly Bottom...
Page 190: ...TEK933 Board Diagrams C 7 DIAGRAM C 3 TEK933 Configuration...
Page 191: ...TEK933 Board Diagrams C 9 DIAGRAM C 4 TEK933 Mechanical Specifications...
Page 197: ...Post Codes Error Codes E 2 to main BIOS in shadow RAM...