Rev. 1.43
User's
Guide
105
VMBMA
VME Master: A32 Base address for window A
RW
CS4 + $1055
VMBMB
VME Master: A32 Base address for window B
RW
CS4 + $1057
These register permit to complete the high order address for accesses in A32 mode.
D8
D9
D10
D11
D12
D13
D14
D15
Value
x
VA31 VA30 VA29 VA28 VA27 VA26 VA25
Default
x 0 0 0 0 0 0 0
With:
VA31: VME address A31
..
VA25: VME address A25
VMAMA
VME Master: AM for window A
RW
CS4 + $105b
VMAMB
VME Master: AM for window B
RW
CS4 + $105d
These registers permit to complement the Address Modifiers (AM) for VME accesses and define the
Data mode for VME access.
D8
D9
D10
D11
D12
D13
D14
D15
Value
x x
AM2
AM1
AM0
x x x
Default
x x 0 0 1 x x x
With:
AM2:
VME address modifier 2
..
AM0: VME address modifier 0
By default, the AM codes corresponds to non-privileged access.
For supervisor access, AM codes have to be modified from 0 0 1 to 1 0 1.
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Содержание VSBC-6862
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