Programming Model

tien

When tien is set, the setting of the tpass or the tfail bit

 

causes the INT_ signal pin to pulse true.

sien

When sien is set, the logging of a single-bit error causes

 

the INT_ signal pin to pulse true.

mien

When mien is set, the logging of a non-correctable error

 

causes the INT_ signal pin to pulse true.

mcken

When mcken is set, the detection of a multiple-bit error

 

during a PowerPC read or write causes the Falcon to pulse

 

its machine check interrupt request pin (MCP_) true.

 

When mcken is cleared, the Falcon does not ever assert its

 

MCP_ pin.

 

The Falcon never asserts its MCP_ pin in response to a

 

multiple-bit error detected during a scrub cycle.

The INT_ and MCP_ pins are the only non-polled notification that a

!multiple-bit error has occurred. The Falcon pair does not assert TEA as a

Caution

result of a multiple bit error. In fact, the Falcon pair does not have a TEA_

 

 

 

 

 

signal pin and it assumes that the system does not implement TEA_.

 

 

 

 

Error Logger Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Address

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

$FEF80030

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit

0

1

2

3

4

 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

 

30

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

elog

0

0

0

escb

 

esen

embt

esbt

ERROR_SYNDROME

0

0

esblk0

esblk1

0

0

0

 

scof

 

SBE_COUNT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation

R/C

R

R

R

R

 

R/W

R

R

 

READ ONLY

 

R

R

R

R

R

R

R

R/C

 

READ/WRITE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset

0

X

X

X

X

 

0

X

X

 

 

 

 

 

 

 

 

X

X

X

X

X

X

X

0

 

 

 

 

 

 

 

 

 

 

P

 

 

 

P

 

PL

P

P

 

 

 

X P

 

 

 

 

 

 

 

 

 

 

P

 

 

 

0 P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Error Logger and Error Address registers behave the same as the other registers, in that data written to the upper Falcon is automatically duplicated in the lower Falcon. They also behave the same as the other registers, in that status read from the upper Falcon pertains to the upper Falcon, and status read from the lower Falcon pertains to the lower Falcon.

3

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

3-39

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Image 201
Motorola MVME2300 Series manual Tien, Sien, Mien, Mcken