Motorola MVME187 User Manual
2-26
Board Level Hardware Description
2
The following table focuses on the Local I/O Devices portion of the
local bus Main Memory Map.
local bus Main Memory Map.
Table 2-6. Local I/O Devices Memory Map
Address Range
Devices Accessed
Port Size
Size
Notes
$FFF00000 - $FFF3FFFF
Reserved
--
256KB
4
$FFF40000 - $FFF400FF
VMEchip2 (LCSR)
D32
256B
1,3
$FFF40100 - $FFF401FF
VMEchip2 (GCSR)
D32-D8
256B
1,3
$FFF40200 - $FFF40FFF
Reserved
--
3.5KB
4,6
$FFF41000 - $FFF41FFF
Reserved
--
4KB
4
$FFF42000 - $FFF42FFF
PCCchip2
D32-D8
4KB
1
$FFF43000 - $FFF430FF
MEMC040/MCECC #1
D8
256B
1
$FFF43100 - $FFF431FF
MEMC040/MCECC #2
D8
256B
1
$FFF43200 - $FFF43FFF
MEMC040s/MCECCs
(repeated)
(repeated)
--
3.5KB
1,6
$FFF44000 - $FFF44FFF
reserved
--
4KB
4
$FFF45000 - $FFF451FF
CD2401 (Serial Comm.
Cont.)
Cont.)
D16-D8
512B
1
$FFF45200 - $FFF45DFF Reserved
--
3KB
6,8
$FFF45E00 - $FFF45FFF
Reserved
--
512B
8
$FFF46000 - $FFF46FFF
82596CA (LAN)
D32
4KB
1,7
$FFF47000 - $FFF47FFF
53C710 (SCSI)
D32/D8
4KB
1
$FFF48000 - $FFF4FFFF
Reserved
--
32KB
4
$FFF50000 - $FFF6FFFF
Reserved
--
128KB
4
$FFF70000 - $FFF76FFF
Reserved
--
28KB
5
$FFF77000 - $FFF77FFF
CODE CMMU
D32
4KB
1
$FFF78000 - $FFF7EFFF
Reserved
--
28KB
5
$FFF7F000 - $FFF7FFFF
DATA CMMU
D32
4KB
1
$FFF80000 - $FFF9FFFF
Reserved
--
128KB
5
$FFFA0000 - $FFFBFFFF Reserved
--
128KB
4
$FFFC0000 - $FFFCFFFF MK48T08 (BBRAM,
TOD Clock)
D32-D8
64KB
1
$FFFD0000 - $FFFDFFFF Reserved
--
64KB
4
$FFFE0007
IACK LEVEL 1
D8
1 byte
2