Kontron MSM800BEV User Manual
Page 55
MSM800BEV
/ Detailed System Description
www.kontron.com
53
I/O Address
Function
Size
R/W
Comment
481h
DMA Channel 2 High Page
8bit
Rec
Upper addr bits [31:24]. Write LPC and DMA.
Read only DMA.
482h
DMA Channel 3 High Page
483h
DMA Channel 1 High Page
484h-486h
No specific usage
8bit
WO
Write LPC and DMA. Read only DMA.
487h
DMA Channel 0 High Page
8bit
Rec
Upper addr bits [31:24]. Write LPC and DMA.
Read only DMA.
489h
DMA Channel 6 High Page
8bit
Rec
Upper addr bits [31:24]. Write LPC and DMA.
Read only DMA.
48Ah
DMA Channel 7 High Page
48Bh
DMA Channel 5 High Page
48Ch-48Eh
No specific usage
8bit
WO
Write LPC and DMA. Read only DMA.
48Fh
DMA Channel 4 High Page
8bit
Rec
Upper addr bits [31:24]. Write LPC and DMA.
Read only DMA.
490h-4CFh
No specific usage
---
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4D0h
PIC Level/Edge
8bit
Yes
IRQ0-IRQ 7.
4D1h
PIC Level/Edge
8bit
Yes
IRQ8-IRQ15.
4D2h-4FFh
No specific usage
---
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070h-071h
The Diverse Device Snoops writes to this port and maintains the MSB as NMI enabled. When low,
NMI is enabled. When high, NMI is disabled. This bit defaults high. Reads of this port return bits
[6:0] from the on-chip or off-chip target, while Bit 7 is returned from the "maintained" value.