ICS Advent PB751-AT Product Manual page 14

PB751-AT MANUAL
Hex Range Usage
000-00F DMA Chip 8237A-5
020-021 Interrupt 8259A
040-043 Timer 8253-5
060-063 PPI 8255A-5
080-083 DMA Page Register
0AX NMI Mask Register
0CX Reserved
0EX Reserved
100-1FF Not Usable
200-20F Game Control
210-217 Expansion Unit
220-24F Reserved
278-27F Reserved
2F0-2F7 Reserved
2F8-2FF Asynchronous Communication (secondary)
300-31F Prototype Card
320-32F Fixed Disk
378-37F Printer
380-38C** SDLC Communications
380-389** Binary Synchronous Comm. (secondary)
3A0-3A9 Binary Synchronous Comm. (primary)
3B0-3BF IBM Monochrome Display/Printer
3C0-3CF Reserved
3D0-3DF Color/Graphics
3E0-3E7 Reserved
3F0-3F7 Diskette
3F8-3FF Asynchronous Communication (primary)
** These options can not be used together - addresses over lap
MANUAL 00650-100-10
FUNCTIONAL DESCRIPTION
TABLE 1.
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