DIGITAL-LOGIC MSM800SEV/SEL Technical User's Manual page 63

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I/O Map
Continued...
I/O Addr. Function
060h Keyboard/Mouse - Data Port
061h Port B Control
062h-063h No Specific Usage
064h Keyboard/Mouse - Command/ Status
065h-06Fh No Specific Usage
070h-071h RTC RAM Address/Data Port
072h-073h High RTC RAM Address/Data Port
074-077h No Specific Usage
078h-07Fh No Specific Usage
080h Post Code Display
081h DMA Channel 2 Low Page
082h DMA Channel 3 Low Page
083h DMA Channel 1 Low Page
084h-086h No Specific Usage
087h DMA Channel 0 Low Page
088h No Specific Usage
089h DMA Channel 6 Low Page
08Ah DMA Channel 7 Low Page
08B DMA Channel 5 Low Page
08Ch-08Dh No Specific Usage
08Eh DMA
08Fh DMA C4 Low Page
090h-091h No Specific Usage
092h Port A
093h-09Fh No Specific Usage
0A0h PIC Slave - Command/Status
0A1h PIC Slave - Command/Status
0A2h-0BFh No Specific Usage
0C0h Master DMA Address - Channel 4
0C1h No Specific Usage
0C2h Master DMA Counter - Channel 4
0C3h No Specific Usage
0C4h Master DMA Address - Channel 5
0C6h Master DMA Counter - Channel 5
0C7h No Specific Usage
0C8h Master DMA Address - Channel 6
0CAh Master DMA Counter - Channel 6
0CBh No Specific Usage
Continued...
MSM800SEV/SEL/BEV/XEV/XEL Detailed Manual V1.7
Size R/W Comment
If KEL Memory Offset 100h[0] = 1(Emulation-
Enabled bit).
8bit Yes
If MSR 5140001Fh[0] = 1 (SNOOP bit) and
KEL Memory Offset 100h[0] = 0 (Emulation-
Enabled bit).
8bit Yes
--- ---
If KEL Memory Offset 100h[0] = 1
(Emulation-Enabled bit).
.
8bit Yes
If MSR 5140001Fh[0] = 1 (SNOOP
bit) and KEL Memory Offset 100h[0]
= 0 (Emulation-Enabled bit)
--- ---
Yes Options per MSR 51400014h[0]. (Note 1)
8bit
8bit Yes Options per MSR 51400014h[1].
--- ---
--- ---
8bit Rec Write LPC and DMA. Read only DMA.
Upper addr bits [23:16]. Write LPC and DMA.
8bit Rec
Read only DMA.
8bit Rec Write LPC and DMA. Read only DMA.
Upper addr bits [23:16]. Write LPC and DMA.
8bit Rec
Read only DMA.
8bit Rec Write LPC and DMA. Read only DMA.
Upper addr bits [23:16]. Write LPC and DMA.
8bit Rec
Read only DMA.
8bit Rec Write LPC and DMA. Read only
8bit Rec Upper addr bits [23:16]. See comment at 080h.
--- ---
If kel_porta_en is enabled, then access Port A;
8bit Yes
else access LPC.
--- ---
8bit Shw$
8bit Shw$
8bit ---
8bit Yes 16bit values in two transfers.
8bit ---
8bit Yes 16bit values in two transfers.
8bit ---
8bit Yes 16bit values in two transfers.
8bit Yes 16bit values in two transfers.
8bit ---
8bit Yes 16bit values in two transfers.
8bit Yes 16bit values in two transfers.
8bit ---
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