2-3
Contents
2.1
General.............................................................................................................................. 2-5
2.2
Processor ........................................................................................................................... 2-7
2.2.1
Clock Mode ........................................................................................................ 2-7
2.2.2
Sleep Mode ......................................................................................................... 2-7
2.3
Memory ............................................................................................................................ 2-8
2.3.1
Real Mode Memory Map .................................................................................... 2-9
2.3.2
Protected Mode Memory Map (Hard RAM = 0MB) .......................................... 2-10
2.3.3
EMS Expanded Memory ................................................................................... 2-11
2.3.4
Extended Memory ............................................................................................ 2-11
2.3.6
DRAM Address Map ........................................................................................ 2-12
2.4
Interrupts ......................................................................................................................... 2-13
2.4.1
NMI Mask Register........................................................................................... 2-14
2.4.2
PIC ................................................................................................................... 2-14
2.5
Direct Memory Access .................................................................................................... 2-15
2.6
Timer .............................................................................................................................. 2-16
2.7
Speaker ........................................................................................................................... 2-17
2.8
Real Time Clock ............................................................................................................. 2-18
2.8.1 RTC Address Map ................................................................................................. 2-18
2.9
Floppy Disk Controller .................................................................................................... 2-19
2.10
Printer Port ...................................................................................................................... 2-20
2.11
Keyboard Controller ........................................................................................................ 2-21
2.11.1
Key Code Generation ........................................................................................ 2-21
2.11.2
Mouse Control Command ................................................................................. 2-22
2.12
RS-232-C Port ................................................................................................................. 2-24
2.12.1
Data Format ...................................................................................................... 2-24
2.12.2
Input/Output Port .............................................................................................. 2-25
2.12.3
25-pin Connector .............................................................................................. 2-25
2.13
Connectors ...................................................................................................................... 2-26
Tables
Table 2-1
Interrupt assignment ............................................................................................ 2-13
Table 2-2
NMI ..................................................................................................................... 2-14
Table 2-3
DMA channel assignment .................................................................................... 2-15
Table 2-4
PIT channel usage ................................................................................................ 2-16
Table 2-5
PIT I/O ports ....................................................................................................... 2-16
Table 2-6
RTC address map ................................................................................................. 2-18
Table 2-7
Keyboard mode ................................................................................................... 2-21
Table 2-8
Mouse control commands .................................................................................... 2-22
Table 2-9
Mouse interface test error statuses ........................................................................ 2-22
Table 2-10
RS-232-C ports and interrupts.............................................................................. 2-25
Table 2-11
RS-232-C ports and COM number ....................................................................... 2-25
Table 2-12
9-pin to 25-pin conversion ................................................................................... 2-25
Summary of Contents for T-Series T2200sx
Page 1: ...1 1 Chapter 1 Hardware Overview ...
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Page 17: ...2 1 Chapter 2 Operational Overview ...
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Page 43: ...3 1 Chapter 3 Troubleshooting Procedures ...
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Page 83: ...4 1 Chapter 4 Tests and Diagnostics ...
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Page 141: ...5 1 Chapter 5 Disassembly Procedures ...
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Page 169: ...6 1 Chapter 6 Reassembly Procedures ...
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Page 191: ...App 1 Appendices ...
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Page 196: ...App 6 Figure A 2 System board FSTFGx ICs back G G G G E F J H I K ...
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Page 200: ...App 10 Figure A 4 System board FSTFGx connectors back E A P Q ...
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Page 203: ...App 13 A 3 System Board FSTFGx OSCs Figure A 5 System board FSTFGx OSCs front F G H E ...
Page 204: ...App 14 Figure A 6 System board FSTFGx OSCs back A B C D ...
Page 215: ...App 25 Appendix C ASCII Character Codes Table C 1 ASCII character codes ...