Pci interrupt acknowledge register, Mpc slave address (0,1 and 2) registers – Motorola MVME2300 Series User Manual

Page 113

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Raven Registers

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

2-43

2

PCI Interrupt Acknowledge Register

PIACK

PCI Interrupt Acknowledge. Performing a read from
this register will initiate a single PCI Interrupt
Acknowledge cycle. Any single byte or combination of
bytes may be read from, and the actual byte enable pattern
used during the read will be passed on to the PCI bus.
Upon completion of the PCI interrupt acknowledge cycle,
the Raven will present the resulting vector information
obtained from the PCI bus as read data.

MPC Slave Address (0,1 and 2) Registers

To initiate a PCI cycle from the MPC bus, the MPC address must be
greater than or equal to the START field and less than or equal to the END
field.

Address

$FEFF0030

Bit

0 1 2 3 4 5 6 7 8 9

1
0

1
1

1
2

1
3

1
4

1
5

1
6

1
7

1
8

1
9

2
0

2
1

2
2

2
3

2
4

2
5

2
6

2
7

2
8

2
9

3
0

3
1

Name

PIACK

Operation

R

Reset

$00000000

Address

MSADD0 - $FEFF0040

MSADD1 - $FEFF0048

MSADD2 - $FEFF0050

Bit

0 1 2 3 4 5 6 7 8 9

1
0

1
1

1
2

1
3

1
4

1
5

1
6

1
7

1
8

1
9

2
0

2
1

2
2

2
3

2
4

2
5

2
6

2
7

2
8

2
9

3
0

3
1

Name

MSADDx

START

END

Operation

R/W

R/W

Reset

$0000

$0000

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