IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)
IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF) IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)
32/64KB Memory Expansion Option Switch Settings Note: Positions 6-7-8 must always be ON. The sequence shown below must be followed to allow the system to address the ~ memory properly. 32 KB 12345678 96 KB t~LJu~LJDDD 128 KB t~~~~~ooo 64 KB 32 KB 32 KB 64KB 32KB 32 KB 32 KB 32 KB 12345678 12345678 12345678 160 KB t[j[j[j~[jDDD t [j[j[j~~DDD t[j[j~[1uDDD 64 KB 64 KB 12345678 12345678 192 K8 t[jLJLJ~[jDDD t [jLJ~LJ[jDDD 64 KB 32 KB 32 KB 12345678 12345678 12345678 192 KB tLJ[j~~[jDOD t[j[j~~[jDDD t[j~~[j~DDO 64 KB 64 KB 32 KB 12345678 12345678 12345678 224 KB tu~[j~[jDDD t[j~~~~DDD t~~~~uDDD 64 KB 64 KB 64 KB 2-31
2-32 NOTES
- Page 1: April 2011 IMPORTANT 1. The motherb
- Page 5 and 6: FEDERAL COMMUNICATIONS COMMISSION R
- Page 8 and 9: CONTENTS SECTION 1. HARDWARE OVERV
- Page 10 and 11: Programming Considerations ........
- Page 12 and 13: INS 8250 Functional Pin Description
- Page 14 and 15: FIGURE LISTING 1. System Block Dia
- Page 16 and 17: SECTION I. HARDWARE OVERVIEW The
- Page 18 and 19: The 16KB Memory Expansion Kits allo
- Page 20 and 21: SECTION 2. HARDWARE ~ Contents: Sys
- Page 22 and 23: SYSTEM BOARD The System Board fits
- Page 24 and 25: The memory is dynamic 16K x 1 chips
- Page 26 and 27: System Board Data Flow Figure 2. S
- Page 28 and 29: 1/0 Channel Diagram REAR PANEl SI
- Page 30 and 31: I/O CHRDY I I/O Channel Ready: This
- Page 32 and 33: System Board Component Diagram REA
- Page 34 and 35: Keyboard Interface B lock Diagram
- Page 36 and 37: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
- Page 38 and 39: Cassette User Interface The cassett
- Page 40 and 41: Cassette Interface Connector Specif
- Page 42 and 43: I/O Address Map HEX RANGE 9 8 7 6
- Page 44 and 45: System Memory Map X'OOOOO' 16 TO 6
- Page 46 and 47: System Memory Map Cont. START ADDR
- Page 48 and 49: 5-1/4" Diskette Drives Switch Setti
- Page 52 and 53: Power Supply The system DC power su
- Page 54 and 55: N I ~ VI ) § I • \. ~ o el so.
- Page 56 and 57: IBM Monochrome Display and Parallel
- Page 58 and 59: System Channel Interface Lines Used
- Page 60 and 61: Programming Considerations Programm
- Page 62 and 63: • CRT Status Port (I/O Address '3
- Page 64 and 65: Color/Graphics Monitor Adapter The
- Page 66 and 67: CPU .. r-- ) ) ) DISPLAY ADDRESS BU
- Page 68 and 69: Modes of Operation There are two ba
- Page 70 and 71: IBM Monochrome Display Adapter V s.
- Page 72 and 73: Color selection is determined by th
- Page 74 and 75: 1"'"""""\ Table 5. I R G B Summary
- Page 76 and 77: Programming the Mode Control and St
- Page 78 and 79: Bit 5 When on, this bit will change
- Page 80 and 81: I/O Address and Bit Map Read/Write
- Page 82 and 83: Color/Graphics Monitor Adapter Auxi
- Page 84 and 85: Parallel Printer Adapter The Printe
- Page 86 and 87: Programming Considerations The Prin
- Page 88 and 89: Parallel Printer Adapter Interface
- Page 90 and 91: Table 7. Printer Specifications (1
- Page 92 and 93: Table 9. Functions and Conditions o
- Page 94 and 95: Table 10. Connector Pin Assignment
- Page 96 and 97: (4) Data transfer sequence Fig. 17
- Page 98 and 99: ASCII Control Codes Control Codes V
32/64KB Memory Expansion Option <br />
Switch Settings <br />
Note: Positions 6-7-8 must always be ON. The sequence shown<br />
below must be followed to allow the system to address the<br />
~ memory properly.<br />
32 KB<br />
12345678<br />
96 KB t~LJu~LJDDD<br />
128 KB t~~~~~ooo<br />
64 KB<br />
32 KB 32 KB<br />
64KB<br />
32KB<br />
32 KB 32 KB 32 KB<br />
12345678 12345678 12345678<br />
160 KB<br />
t[j[j[j~[jDDD t [j[j[j~~DDD t[j[j~[1uDDD<br />
64 KB 64 KB<br />
12345678 12345678<br />
192 K8 t[jLJLJ~[jDDD t [jLJ~LJ[jDDD<br />
64 KB 32 KB 32 KB<br />
12345678 12345678 12345678<br />
192 KB<br />
tLJ[j~~[jDOD t[j[j~~[jDDD t[j~~[j~DDO<br />
64 KB 64 KB 32 KB<br />
12345678 12345678 12345678<br />
224 KB<br />
tu~[j~[jDDD t[j~~~~DDD t~~~~uDDD<br />
64 KB 64 KB 64 KB<br />
2-31
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