Motorola MVME1X7P User Manual
3-10
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PCCchip2
3
Overall Memory Map
The following memory map includes all devices selected by the PCCchip2
map decoders, including those internal to the chip and those external.
These devices respond only when the Transfer Type signals carry the
values of %00 or %01 which correspond to Normal and MOVE16 accesses
on the Local Bus.
map decoders, including those internal to the chip and those external.
These devices respond only when the Transfer Type signals carry the
values of %00 or %01 which correspond to Normal and MOVE16 accesses
on the Local Bus.
Table 3-1. PCCchip2 Devices Memory Map
Address Range
Selected Device
Comments
$FFF42000-$FFF4203F
PCCchip2 Registers
See Programming Model
$FFF42040-$FFF42FFF
PCCchip2 Registers
Repeated
$FFF43000-$FFF43FFF
MCECC (Memory Controller)
External Device
$FFF45000-$FFF450FF
CD2401 (SCC)
External Device
$FFF45100-$FFF45FFF
CD2401 (SCC)
Repeated
$FFF46000-$FFF46FFF
82596CA (LANC)
External Device
$FFF47000-$FFF47FFF
53C710 (SCSI)
External Device
$FFF80000-$FFFBFFFF
Reserved
External Device
$FFFC0000-$FFFCFFFF
DS1643/M48T58 (BBRAM,
TOD Clock)
TOD Clock)
External Device