Topic       : The ATARI Compendium
Author      : Scott Sanders / JAY Software
Version     : 1.25 (20/6/2003)
Subject     : Documentation
Nodes       : 1117
Index Size  : 32614
HCP-Version : 6
Compiled on : Atari
@charset    : UTF-8
@lang       : en
@default    : 
@help       : %About
@options    : +g -i -t4 +y +z
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                              DMA Sound System


Location(s)   SizeBYTE   Occupies one byte (8 bits).
WORD   Occupies one WORD (16 bits).
LONG   Occupies one longword (32 bits).
OW     Occupies the odd WORD of a LONG.
EW     Occupies the even WORD of a LONG.
OB     Occupies the odd BYTE of a WORD.
EB     Occupies the even BYTE of the WORD.
  MchnIf the box is shaded then address is available
for this computer.

        ▒ ▒ ▒ ▒ ▒ ▒
        | | | | | '------- Falcon030
        | | | | '--------- TT030
        | | | '----------- MEGA STe
        | | '------------- STe
        | '--------------- MEGA ST
        '----------------- ST
  TypeROM          Location is Read-Only Memory
RAM          Location is Read-Write Memory
I/O          Location is hardware-mapped
VME          Location addresses VME address space
N/A          Not applicable
RO           Read-only location
WO           Write-only location
RW           Read-write location
RSVD         Reserved
Unassigned   Either not assigned or undocumented
  Meaning                         (see Usage)

                        ▒
0x00FF8900    BYTE      ▒ I/O   Sound DMA Control as follows:
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                     ▒▒▒▒
0x00FF8901    BYTE   ▒▒▒▒ I/O   Additional sound DMA control as follows:
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF8902    OB     ▒▒▒▒ I/O   Frame Base Address High
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF8904    OB     ▒▒▒▒ I/O   Frame Base Address Mid
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF8906    OB     ▒▒▒▒ I/O   Frame Base Address Low
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF8908    OB     ▒▒▒▒ I/O   Frame Address Counter High
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF890A    OB     ▒▒▒▒ I/O   Frame Address Counter Mid
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF890C    OB     ▒▒▒▒ I/O   Frame Address Counter Low
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF890E    OB     ▒▒▒▒ I/O   Frame End Address High
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF8910    OB     ▒▒▒▒ I/O   Frame End Address Mid
                     ▒▒▒▒
                     ▒▒▒▒
0x00FF8912    OB     ▒▒▒▒ I/O   Frame End Address Low
                     ▒▒▒▒
                   ▒▒▒▒▒▒
0x00FF8914 -  N/A  ▒▒▒▒▒▒ I/O   Unassigned
0x00FF8919         ▒▒▒▒▒▒
                   ▒▒▒▒▒▒
                        ▒
0x00FF8920    BYTE      ▒ I/O   Sound mode control as follows:
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                        ▒
                     ▒▒▒▒
0x00FF8921    BYTE   ▒▒▒▒ I/O   Additional sound mode control as
                     ▒▒▒▒       follows:
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
                     ▒▒▒▒
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