Motorola MVME2300 Series manual MIDx, Feat, Current MPC Data Bus Master

Models: MVME2300 Series

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Raven Registers

 

 

 

 

 

MIDx

Master ID. Encoded as shown below to indicate who is

 

currently the MPC bus master. When the internal MPC

 

arbiter is enabled (MARB is set), these bits are controlled

 

by the internal arbiter. When the internal arbiter is

 

disabled (MARB is clear) these bits reflect the status of

 

the CPUID pins. In a multi- processor environment, these

 

bits allow software to determine on which processor it is

 

currently running. The internal MPC arbiter encodes this

 

field as follows:

.

 

 

 

 

 

 

MID

Current MPC Data Bus Master

 

 

 

 

 

 

 

 

00

Device on ABG0*

 

 

 

 

 

 

 

 

01

Device on ABG1*

 

 

 

 

 

 

 

 

10

Device on ABG2

 

 

 

 

 

 

 

 

11

Raven

 

 

 

 

 

 

FEAT

Feature Register. Each bit in this register reflects the

state of one of the external interrupt input pins on the rising edge of RESET∗. This register may be used to report hardware configuration parameters to system software.

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Page 105
Image 105
Motorola MVME2300 Series manual MIDx, Feat, Current MPC Data Bus Master