User`s manual

PICO820 Series All-In-One PICO ITX Board User’s Manual
Hardware Description
26
3.4 I/O Port Address Map
The Intel
®
ATOM™ processor Z500 Series can communicate via I/O
ports. There are total 1KB port addresses available for assignment to
other devices via I/O expansion cards.
Address
Devices
000-01F
DMA controller #1
020-02D
024-025
028-029
02C-02D
Interrupt controller #1
02E-02F
Forwarded to LPC(LPC Super I/O 2)
030-031
034-035
038-039
03C-03D
Interrupt controller #2
040-043
050-053
Timer/Counter (8254)
04E-04F
Forwarded to LPC(LPC Super I/O 1)
060-06F
Forwarded to LPC(Microcontroller for
Keyboard Controller)
070-077
Real time clock, NMI
080-091
DMA page register
092
Processor I/F(Reset Generator)
093-09F
DMA page register
0A0-0BF
Interrupt controller #2
0C0-0DF
DMA controller #2
0F0
Processor I/F
0F8-0FF
Math processor
170-177
Forward to SATA(SATA Controller)
1F0-1F7
Forward to SATA(SATA Controller)
250-25F
HR I/O
300-31F
Prototype card
376
Forward to SATA(SATA Controller)
378-37F
Parallel Port (LPT)
380-38F
SDLC #2
3A0-3AF
SDLC #1