Epson Equity LT Producthandleiding - Pagina 3
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I/O Port Addresses
Address
DMA Controller
020 - 03F
Interrupt Controller
040 -05F
Timer / Counter
Programmable Peripheral Interface
080 - 07F
DMA Page Register
080 - 09F
Non - Maskable Interrupt Mask
OAO
Hard Disk Controller
320 - 32F
3BC - 3BF
Parallel Port
3D0 - 3DF
Video (LCD/CRT) Controller
Floppy Disk Controller
Gradation Selection
03DA
RTC and CMOS RAM
System Status Register
1188
DMA Channels
Function
Channel
0
DRAM Refresh
1
Spare
FDD Controller
2
HDD Controller
3
Hardware Interrupts
NUMBER
FUNCTION
Timer Output
Keyboard
Reserved
Serial Port 2
Serial Port 1
Hard Disk
Floppy Disk
Printer
Equity Series Computers
Function
12/12/88
EQUITY LT
EQLT-3