Epson EQUITY II+ Producthandleiding - Pagina 6
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EQUITY II+ (10 MHz)
Multifunction Board
Multifunction Board
lumper
2 3 4 5 6 9 1 0
3
A
B
A
A
A
A
B
B
B A
A
B B
A
A
A
A
B
B
B
* Factory Settings
I/O Port Addresses
Address
DMA Controller 1
Interrupt Controller 1
020 - 03F
040 - 05F
Timer/Counter
060 - 06F
Keyboard controller and Port B
070 - 07F
CMOS RAM and Non - Maskable Interrupt Mask
080 - 09F
DMA Page Register
OAO-OBF
Interrupt Controller 2
OCO-ODF
DMA Controller 2
Numeric Coprocessor
Hard Disk Controller
278 - 27F
Parallel Port 1
Serial Port 1
378 - 37F
Parallel Port 0
Parallel Port 2 (on some video boards)
Floppy Disk Controller
Serial Port 0
EQll+ -6
Function
1 1
* Primary register set of AT FDC
* Enable FDC register set
* Primary parallel I/F, IRQ7
Secondary parallel I/F, IRQ5
Parallel I/F on video, IRQ7
Disable parallel I/F
* Primary serial I/F, IRQ4
Secondary serial I/F, IRQ3
Disable serial I/F
* Enable register set of AT FDC
A
B
Function
12/12/88
DMA Channels
0
Spare
1
Spare
Floppy disk transfers
2
Spare (Hard disk drive)
3
Cascade of data from channel 0 - 3
4
5
Spare
6
Spare
7
Spare
Hardware Interrupts
CTLR1
CTLR2
Timer Output 0
Keyboard
Interrupt from CTLR2
Serial port 2
Serial port 1
Parallel port 2
Floppy disk interrupt
Parallel port 1
RTC interrupt
Software redirected to IRQ2
Reserved
Reserved
Reserved
Coprocessor
Hard disk controller
Reserved
Equity Series Computers
Function
FUNCTION