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N.3 interrupt global registers, N.4 interrupt-related asr registers, N.4.2 interrupt vector dispatch register – FUJITSU Implementation Supplement Fujitsu SPARC64 V User Manual

Page 147: N.4.3 interrupt vector dispatch status register, N.4.5 interrupt vector receive register

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SPARC JPS1 Implementation Supplement: Fujitsu SPARC64 V • Release 1.0, 1 July 2002

N.3

Interrupt Global Registers

Please refer to Section N.3. of Commonality.

N.4

Interrupt-Related ASR Registers

Please refer to Section N.4 of Commonality for details of these registers.

N.4.2

Interrupt Vector Dispatch Register

SPARC64 V ignores all 10 bits of

VA

<38:29> when the Interrupt Vector Dispatch

Register is written (impl. dep. #246).

N.4.3

Interrupt Vector Dispatch Status Register

In SPARC64 V, 32 BUSY/NACK pairs are implemented in the Interrupt Vector
Dispatch Status Register (impl. dep. #243).

N.4.5

Interrupt Vector Receive Register

SPARC64 V sets a 5-bit physical module ID (

MID

) value in the

SID_L

field of the

Interrupt Vector Receive Register. The

SID_U

field always reads as zero. SPARC64 V

obtains the interrupt source identifier

SID_L

from the UPA packet (impl. dep. #247).