Monaco Technical Reference
Spectrum Signal Processing
Registers
56
Part Number 500-00191
Revision 2.00
VME A24 Status Register
VME A24 Secondary Base A 1000h
D31..
..D8
Reserved
D7..
..D4
D3
D2
D1
D0
Reserved
HINT_D
HINT_C
HINT_B
HINT_A
The VME host reads this register to determine the state of the HINT lines from each
processor node. Each bit corresponds to one of the four processor nodes. The state of the
bit is simply a reflection of the HINT bit value in the corresponding ‘C6x HPIC register.
A “1” in the bit position indicates that the corresponding ‘C6x processor has requested
an interrupt.
HINT_A
Bit D0 is set to “1” when node A is requesting a host interrupt.
HINT_B
Bit D1 is set to “1” when node B is requesting a host interrupt.
HINT_C
Bit D2 is set to “1” when node C is requesting a host interrupt.
HINT_D
Bit D3 is set to “1” when node D is requesting a host interrupt.
This read only register is accessed from the VME A24 bus. It is located at offset 1000h
from the base address set by jumper JP1 (A23..A17).
Содержание Monaco Quad 'C6x VME64
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