Raven Registers

MERAD MPC Error Address. This register captures the MPC address when the MATO bit is set in the MERST register. It captures the PCI address when the SMA or RTA bits are set in the MERST register. Its contents are not defined when the PERR or SERR bits are set in the MERST register.

MPC Error Attribute Register - MERAT

If the PERR or SERR bits are set in the MERST register, the contents of the MERAT register are zero. If the MATO bit is set, the register is defined by the following figure:

Address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$FEFF002C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

 

 

 

 

 

 

 

 

 

 

 

 

1

1

 

1

1

1

1

1

1

1

1

2

2

2

 

2

2

2

2

2

2

2

3

3

 

0

1

2

3

 

4

5

 

6

7

8

9

0

1

 

2

3

4

5

6

7

8

9

0

1

2

 

3

4

5

6

7

8

9

0

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MERAT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MID1

MID0

 

 

 

TBST

TSIZ0

TSIZ1

TSIZ2

TT0

TT1

TT2

TT3

TT4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation

 

 

 

R

 

 

 

 

 

 

 

 

R

 

 

 

 

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

 

 

 

$00

 

 

 

 

 

 

 

$00

 

 

 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIDx

 

 

MPC Master ID. Contains the ID of the MPC master

 

 

 

 

 

 

 

 

 

 

 

 

which originated the transfer in which the error occurred.

 

 

 

 

 

 

 

 

 

 

 

The encoding scheme is identical to that used in the GCSR

 

 

 

 

 

 

 

 

 

 

 

register.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TBST

 

 

Transfer Burst. This bit is set when the transfer in which

 

 

 

 

 

 

 

 

 

 

 

the error occurred was a burst transfer.

 

 

 

 

 

 

 

 

 

 

 

TSIZx

 

Transfer Size. Contains the transfer size of the MPC

 

 

 

 

 

 

 

 

 

 

 

 

transfer in which the error occurred.

 

 

 

 

 

 

 

 

 

 

 

 

 

TTx

 

 

Transfer Type. Contains the transfer type of the MPC

 

 

 

 

 

 

 

 

 

 

 

 

transfer in which the error occurred.

 

 

 

 

 

 

 

 

 

2

http://www.motorola.com/computer/literature

2-41

Page 111
Image 111
Motorola MVME2300 Series MPC Error Attribute Register Merat, Which originated the transfer in which the error occurred