2-13
2.4 Interrupts
The T2200SX supports one Non-Maskable Interrupt (NMI) and fifteen levels of maskable inter-
rupts. Table 2-1 defines the interrupt assignments.
Table 2-1 Interrupt assignment
An I/O channel error occurs during one of the following situations:
1) An error coming from the Expansion port is detected.
2) An interrupt request from the intelligent power supply is detected.
The math co-processor (80387SX) generates an INT‘13’ interrupt by itself, and its interrupt handler
executes INT‘02’, that is an NMI interrupt vector.
Interrupt
Level
Assigned to:
---
NMI
RAM Parity Error, I/O Channel Error
1
0
Timer
1
Keyboard
2
PIC 2 for level 8 to 15
3
Secondary Communications (COM 2)
4
Primary Communications (COM 1)
5
PRT 2
6
FDC
7
PRT 1
2
8
RTC
9
Software Redirect to INT '0A'
10
Reserved
11
Reserved
12
PS/2 Mouse
13
80387SX
14
HDC
15
Reserved
Содержание T-Series T2200sx
Страница 1: ...1 1 Chapter 1 Hardware Overview ...
Страница 2: ...1 2 This page intentionally left blank ...
Страница 4: ...1 4 This page intentionally left blank ...
Страница 16: ...1 16 This page intentionally left blank ...
Страница 17: ...2 1 Chapter 2 Operational Overview ...
Страница 18: ...2 2 This page intentionally left blank ...
Страница 42: ...2 26 2 13 Connectors Appendix B contains the pin assignments for the connectors within the T2200SX ...
Страница 43: ...3 1 Chapter 3 Troubleshooting Procedures ...
Страница 44: ...3 2 This page intentionally left blank ...
Страница 46: ...3 4 This page intentionally left blank ...
Страница 82: ...3 40 This page intentionally left blank ...
Страница 83: ...4 1 Chapter 4 Tests and Diagnostics ...
Страница 84: ...4 2 This page intentionally left blank ...
Страница 141: ...5 1 Chapter 5 Disassembly Procedures ...
Страница 142: ...5 2 This page intentionally left blank ...
Страница 144: ...5 4 This page intentionally left blank ...
Страница 169: ...6 1 Chapter 6 Reassembly Procedures ...
Страница 170: ...6 2 This page intentionally left blank ...
Страница 172: ...6 4 This page intentionally left blank ...
Страница 191: ...App 1 Appendices ...
Страница 192: ...App 2 This page intentionally left blank ...
Страница 195: ...App 5 Appendix A System Board Layout A 1 System Board FSTFGx ICs Figure A 1 System board FSTFGx ICs front A D D C B ...
Страница 196: ...App 6 Figure A 2 System board FSTFGx ICs back G G G G E F J H I K ...
Страница 198: ...App 8 This page intentionally left blank ...
Страница 199: ...App 9 A 2 System Board FSTFGx Connectors Figure A 3 System board FSTFGx connectors front M G I D B R K L L H N J O C F ...
Страница 200: ...App 10 Figure A 4 System board FSTFGx connectors back E A P Q ...
Страница 202: ...App 12 This page intentionally left blank ...
Страница 203: ...App 13 A 3 System Board FSTFGx OSCs Figure A 5 System board FSTFGx OSCs front F G H E ...
Страница 204: ...App 14 Figure A 6 System board FSTFGx OSCs back A B C D ...
Страница 215: ...App 25 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...
Страница 222: ...App 32 E 3 German Keyboard Figure E 3 German keyboard E 4 French Keyboard Figure E 4 French keyboard ...