Epson Equity III+ Panduan Produk - Halaman 3

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Halaman Cetak
Epson Equity III+ Panduan Produk

Memory Board

Jumper
1
2
3
4
5
6
7
A
A
A
B
A
A
B
B
A
B
B
B
A
A
B
B
A
A
B
B
* Factory Settings
Multifunction Board
lumper
I
2
3
4
5
6
7
8
A
3 A
B
3 B
A
A
A
B
B
A
B
B
A
A
A
B
B
A
B
A
B
Factory Settings
l
Equity Series Computers
Function
* RAM 640KB
RAM 512KB
RAM 256KB
RAM OKB
EPROM 21728 type
* EPROM 27256 type
* Select ROM sockets
24A and 248
Select ROM sockets
23A and 236
Function
9
10
* Primary register set (AT FDC)
Secondary register set (AT FDC)
PC register set (FDC)
Disable FDC register set
* Primary parallel I/F, IRQ7
A
B
Secondary parallel I/F, IRQ5
Video adapter parallel I/F, IRQ7
A
Disable parallel I/F
A
* Primary serial I/F, IRQ4
B
Secondary serial I/F, IRQ3
Disable serial I/F
* AT compatible FDD I/F
Equity III FDD I/F
* Standard setting
Test mode of VCO
12/12/88
EQUITY Ill + (12 MHz)

I/O Port Addresses

Address
DMA Controller 1
Interrupt Controller 1
040 - 05F
Timer/Counter
Keyboard controller and Port B
060 - 06F
070 - 07F
CMOS RAM and Non - Maskable Interrupt Mask
DMA Page Register
OAO -0BF
Interrupt Controller 2
OCO -0DF DMA Controller 2
Hard Disk Controller - Primary
Parallel Port 1
278 - 27F
378 - 37F
Parallel Port 0
3BC -3BF Parallel Port 2 (on some video boards)
3Fo - 3F7
Floppy Disk Controller
Keylock
The keylock on the front panel allows you to disable the
keyboard and RESET button and lock the top cover of the
main unit for security. The keyboard may be locked while
the system is in operation. This disables the keyboard
one can interfere with the current operation.
To lock the system, insert the key with the notch pointing
left and turn it clockwise. You must press it in slightly when
you turn the key. To unlock it, insert the key with the notch
pointing up and turn the key counterclockwise. You can
remove the key in either position.
Function
EQIII + - 3
no
SO