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Functional Description
MEN Mikro Elektronik GmbH
70
20A014-00 E2 – 2007-08-16
2.16.12
A32 Address Mode
Since the address space for BAR1 is limited to 512MB, the upper three address bits
must be set in another way, in order to address the entire VMEbus address space.
Therefore, a register contains the upper three address bits.
LONGADD – Upper 3 Address Bits for A32 (
0x001C
) (read/write)
7..3
2
1
0
-
ADDR31
ADDR30
ADDR29
ADDR31..ADDR29
Upper 3 address bits for A32 access. These bits will be
combined with the address bits ADDR28..ADDR2 while an
A32 access on the VMEbus is performed, in order to address
the entire A32 space.