Computer Hardware User Manual

Table Of Contents
Memory Maps
http://www.motorola.com/computer/literature 1-23
1
$FFF43100 - $FFF431FF Petra/MCECC #2 D8 256B 1
$FFF43200 - $FFF43FFF Petra/MCECCs (repeated) -- 3.5KB 1,7
$FFF44000 - $FFF44FFF Reserved -- 4KB 5
$FFF45000 - $FFF451FF CD2401 (Serial Comm. Cont.) D16-D8 512B 1,9
$FFF45200 - $FFF45DFF Reserved -- 3KB 7,9
$FFF45E00 - $FFF45FFF Reserved -- 512B 1,9
$FFF46000 - $FFF46FFF 82596CA (LAN) D32 4KB 1,8
$FFF47000 - $FFF47FFF 53C710 (SCSI) D32/D8 4KB 1
$FFF48000 - $FFF4FFFF Reserved -- 32KB 5
$FFF50000 - $FFF6FFFF Reserved -- 128KB 5
$FFF70000 - $FFF76FFF Reserved -- 28KB 6
$FFF77000 - $FFF77FFF Reserved -- 4KB 2
$FFF78000 - $FFF7EFFF Reserved -- 28KB 6
$FFF7F000 - $FFF7FFFF Reserved -- 4KB 2
$FFF80000 - $FFF9FFFF Reserved -- 128KB 6
$FFFA0000 - $FFFBFFFF Reserved -- 128KB 5
$FFFC0000 - $FFFCFFFF M48T58 (BBRAM, TOD
Clock)
D32-D8 64KB 1
$FFFD0000 - $FFFDFFFF Reserved -- 64KB 5
$FFFE0000 - $FFFEFFFF Reserved -- 64KB 2
Table 1-4. Local I/O Devices Memory Map (Continued)
Address Range Devices Accessed Port Size Size Notes