Memory Maps

The following table focuses on the Local I/O Devices portion of the local bus Main Memory Map.

Table 1-4. Local Bus I/O Devices Memory Map

Address Range

Device

Port Width

Size

Note(s)

 

 

 

 

 

 

 

 

 

 

$FFF00000 - $FFF3FFFF

reserved

--

256KB

4

$FFF40000 - $FFF400FF

VMEchip2 (LCSR)

D32

256B

1, 3

$FFF40100 - $FFF401FF

VMEchip2 (GCSR) registers

D32-D8

256B

1, 3

$FFF40200 - $FFF40FFF

reserved

--

3.5KB

4, 5

$FFF41000 - $FFF41FFF

reserved

--

4KB

4

$FFF42000 - $FFF42FFF

MCchip

D32-D8

4KB

1

$FFF44300 - $FFF44FFF

reserved

--

8KB

4

$FFF45000 - $FFF45FFF

SCC (Z85230)

D8

4KB

1, 2

$FFF46000 - $FFF46FFF

LAN (82596CA)

D32

4KB

1, 6

$FFF47000 - $FFF47FFF

SCSI (53C710)

D32-D8

4KB

1

$FFF48000 - $FFF57FFF

reserved

--

64KB

4

$FFF58000 - $FFF5807F

IPIC IP a I/O

D16

128B

1

$FFF58080 - $FFF580FF

IPIC IP a ID

D16

128B

1

$FFF58100 - $FFF5817F

IPIC IP b I/O

D16

128B

1

$FFF58180 - $FFF581FF

IPIC IP b ID Read

D16

128B

1

$FFF58200 - $FFF5827F

IPIC IP c I/O

D16

128B

1

$FFF58280 - $FFF582FF

IPIC IP c ID

D16

128B

1

$FFF58300 - $FFF5837F

IPIC IP d I/O

D16

128B

1

$FFF58380 - $FFF583FF

IPIC IP d ID Read

D16

128B

1

$FFF58400 - $FFF584FF

IPIC IP ab I/O

D32-D16

256B

1

$FFF58500 - $FFF585FF

IPIC IP cd I/O

D32-D16

256B

1

$FFF58600 - $FFF586FF

IPIC IP ab I/O repeated

D32-D16

256B

1

$FFF58700 - $FFF587FF

IPIC IP cd I/O repeated

D32-D16

256B

1

$FFF58800 - $FFF5887F

reserved

--

128B

1

$FFF58880 - $FFF588FF

reserved

--

128B

1

$FFF58900 - $FFF5897F

reserved

--

128B

1

$FFF58980 - $FFF589FF

reserved

--

128B

1

$FFF58A00 - $FFF58A7F

reserved

--

128B

1

$FFF58A80 - $FFF58AFF

reserved

--

128B

1

$FFF58B00 - $FFF58B7F

reserved

--

128B

1

$FFF58B80 - $FFF58BFF

reserved

--

128B

1

$FFF58C00 - $FFF58CFF

reserved

--

256B

1

$FFF58D00 - $FFF58DFF

reserved

--

256B

1

$FFF58E00 - $FFF58EFF

reserved

--

256B

1

$FFF58F00 - $FFF58FFF

reserved

--

256B

1

$FFFBC000 - $FFFBC01F

IPIC registers

D32-D8

2KB

1

$FFFBC800 - $FFFBC81F

reserved

--

2KB

1

$FFFBD000 - $FFFBFFFF

reserved

--

12KB

4

$FFFC0000 - $FFFC7FFF

MK48T08 (BBRAM, TOD clock)

D32-D8

32KB

1

$FFFC8000 - $FFFCBFFF

MK48T08 & disable Flash writes

D32-D8

16KB

1, 7

$FFFCC000 - $FFFCFFFF

MK48T08 & enable Flash writes

D32-D8

16KB

1, 7

$FFFD0000 - $FFFEFFFF

reserved

--

128KB

4

1

MVME162IG/D2

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Image 29
Motorola MVME162 manual Local Bus I/O Devices Memory Map, Address Range Device Port Width Size