I/O
(Input/Output)
Address Map 2-33
Channel
2-8
Channel Description (System Board) 2-10
Diagram 2-9
I/O
CH CK
(I/O Channel Check) 2-10
I/O
CH
RDY
(I/O
Channel Ready) 2-11
lOR
(I/O Read Command) 2-11
lOW
(I/O
Write Command) 2-11
Interrupts
And
DMA
Response Requirements 2-39
Enable Register 2-141
Identification Register 2-139
Levels (O-XX) 2-42
Vector Listing 3-3
Vectors (O-7F) 3-21
1
CH
- Timer Tick
3-5
1
DH
- Video Parameters
3-5
1
EH
- Diskette Parameters
3-5
1
FH
- Graphics Character Extensions 3-6
15
3-8
K
KB
- Kilobyte (See Memory Expansion Options)
Keyboard
Break 3-16
Character Codes 3-11
Diagram 2-16
Encoding 3-11
Extended Codes 3-13
Extended Functions 3-13
Interface Block Diagram 2-15
Interface Connector Specifications 2-18
Pause 3-16
Print Screen 3-16
Scan Codes 2-17
Shift States 3-14
Shift Key Priorities 3-15
Special Handling 3-15
System Reset 3-15
Usage 3-17
Kilobyte (KB) (See Memory Expansion Options)
1-10