Motorola SPX3BUM/D User Manual page 17

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MOTOROLA
Table 18. Detailed ISA I/O Address Map
End Mode
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--- R/W
--- R/W
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--- R
W
--- W
--- W
--- W
--- W
--- W
--- W
--- W
--- R/W
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--- W
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--- R/W
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--- W
Device
WB DMA Channel 0 Base/Current Word
WB DMA Channel 1 Base/Current Address
WB DMA Channel 1 Base/Current Word
WB DMA Channel 2 Base/Current Address
WB DMA Channel 2 Base/Current Word
WB DMA Channel 3 Base/Current Address
WB DMA Channel 3 Base/Current Word
WB DMA Controller 1 Status
DMA Controller 1 Command
WB DMA Controller 1 Request
WB DMA Controller 1 Mask
WB DMA Controller 1 Mode
WB DMA Controller 1 Clear Byte Pointer
WB DMA Controller 1 Master Clear
WB DMA Controller 1 Clear Mask
WB DMA Controller 1 Write All Mask
WB PIC 1 Command
WB PIC 1 Command
WB Counter 0
WB Counter 1
WB Counter 2
WB Timer/Counter Control
SIO Keyboard Controller Data
WB NMI Status/Control
SIO Keyboard Controller Command
SIO RTC/APC Index
WB RTC Index (shadow)
Register
unassigned
unassigned
unassigned
unassigned
unassigned
Notes
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