Epson ActionNote 650 Product Information Guide - Page 6

System I/O Addresses, DMA Assignments, and Hardware Interrupts, CPU Selection Connector JP224

Page 6 highlights

EPSON ActionNote 650 CPU Selection Connector (JP224) PCMCIA Socket A Connector (JP225) 1 Pin No. Inverter Connector (P2) Pin No. 3 Signal CURR: 2.1A/1.05A current source System I/O Addresses, DMA Assignments, and Hardware Interrupts I/O Addresses Hex Address Device DMA controller 1 020-040 Interrupt controller 040-060 070-080 Timer/ counter Keyboard controller RTC NMI 0A0-0C0 0C0-0F0 DMA page register Interrupt controller 2 DMA controller 2 Hex Address 0F0-0F1 0F1-0F8 100-1F0 1F0-200 200-208 208-278 Device Clear math coprocessor busv Reset math coprocessor Math coprocessor Reserved Hard disk drive Game port Reserved Hex Address 27F-2F8 2F8-2FF 2FF-3B0 3B0-3F0 3BC-3BE 3 3F0-3F8 3F8-3FF Device Reserved Serial port 2 Video system Parallel port 1 Diskette drive controller Serial port 1 240-24F PCMCIA controller DMA Assignments Level DMA0 DMA1 Device Available Available Diskette Controller Level DMA3 DMA4 Device ECP Cascade for Ctrl 1 Available Level DMA6 DMA7 Device Available Available AN650-6 10l25l94

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EPSON ActionNote 650
1
Pin No.
Pin No.
CPU Selection Connector (JP224)
Signal
CURR:
2.1A/1.05A
current
source
3
Inverter Connector (P2)
System I/O Addresses, DMA Assignments, and
Hardware Interrupts
I/O Addresses
Hex
Address
Device
Hex
Address
Device
Hex
Address
Device
DMA con-
troller 1
0F0-0F1
Clear
math co-
processor
busv
27F-2F8
Reserved
020-040
Interrupt
controller
0F1-0F8
Reset
math co-
processor
2F8-2FF
Serial
port 2
PCMCIA Socket A Connector (JP225)
040-060
Timer/
counter
Math co-
processor
2FF-3B0
Keyboard
controller
100-1F0
Reserved
3B0-3F0
Video
system
070-080
RTC NMI
1F0-200
Hard disk
drive
3BC-3BE
3
Parallel
port 1
DMA
page
register
200-208
Game port
3F0-3F8
Diskette
drive
controller
0A0-0C0
Interrupt
controller
2
208-278
Reserved
3F8-3FF
Serial
port 1
0C0-0F0
DMA con-
troller 2
240-24F
PCMCIA
controller
DMA Assignments
Level
Device
Level
Device
Level
Device
DMA0
Available
DMA3
ECP
DMA6
Available
DMA1
Available
DMA4
Cascade for
DMA7
Available
Ctrl 1
Diskette
Controller
Available
AN650-6
10l25l94