Motorola MVME1X7P manual 11 C710 Scsi Memory Map, BBRAM/TOD Clock Memory Map

Models: MVME1X7P

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Memory Maps

Table 1-11. 53C710 SCSI Memory Map

Base Address is $FFF47000

Big Endian

53C710 Register Address Map

SCRIPTs Mode and

Mode

 

 

 

 

Little Endian Mode

 

 

 

 

 

 

00

SIEN

SDID

SCNTL1

SCNTL0

00

 

 

 

 

 

 

04

SOCL

SODL

SXFER

SCID

04

 

 

 

 

 

 

08

SBCL

SBDL

SIDL

SFBR

08

 

 

 

 

 

 

0C

SSTAT2

SSTAT1

SSTAT0

DSTAT

0C

 

 

 

 

 

 

10

 

DSA

 

10

 

 

 

 

 

 

14

CTEST3

CTEST2

CTEST1

CTEST0

14

 

 

 

 

 

 

18

CTEST7

CTEST6

CTEST5

CTEST4

18

 

 

 

 

 

 

1C

 

TEMP

 

1C

 

 

 

 

 

 

20

LCRC

CTEST8

ISTAT

DFIFO

20

 

 

 

 

 

 

24

DCMD

 

DBC

 

24

 

 

 

 

 

 

28

 

DNAD

 

28

 

 

 

 

 

2C

 

DSP

 

2C

 

 

 

 

 

30

 

DSPS

 

30

 

 

 

 

 

34

 

SCRATCH

 

34

 

 

 

 

 

 

38

DCNTL

DWT

DIEN

DMODE

38

 

 

 

 

 

 

3C

 

ADDER

 

3C

 

 

 

 

 

 

Note Accesses may be 8-bit or 32-bit, but not 16-bit.

BBRAM/TOD Clock Memory Map

The M48T58 BBRAM (also called Non-Volatile RAM or NVRAM) is divided into six areas as shown in Table 1-12. The first five areas are defined by software, while the sixth area, the time-of-day (TOD) clock, is defined by the chip hardware. The first area is reserved for user data. The second area is used by Motorola networking software. The third area may be used by an operating system. The fourth area is

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Motorola MVME1X7P manual 11 C710 Scsi Memory Map, BBRAM/TOD Clock Memory Map