HP E1433A, Руководство пользователя, Страница: 177 / 222

The A24 Registers
The following A24 registers are accessible at the base address defined by
the device’s offset Register. The registers at offsets 0 to E
16
are not
accessible using longword (D32) accesses. The registers at offsets 10
16
to
FFFFF
16
may be accessed by any of the of the D08(EO), D16, or D32
modes.
FFFFF
16
8000 0
16
Movable DSP
Bus Window
7FFFF
16
3000 0
16
Fixed DSP
Bus Window
2FFFF
16
2000 0
16
Send/Receive
Data Registers
1FFFF
16
0004 F
16
Fixed DSP
Bus Window
0003 F
16
0000 0
16
VXI Bus A16
Registers
The A24 registers are defined as follows:
q
VXI Bus A16 Registers: These are the same registers accessed at the device’s
A16 base address.
q
Fixed DSP Bus Window: Accesses to this region are mapped to the
corresponding locations at the base of the internal DSP’s memory map, also
accessible through Page 0 of the moveable DSP bus window.
q
Send/Receive Data Registers: Accesses to any address in this region will
read/write the Send and Receive Data registers defined in the A16 register set.
VME Bus D32 Block Transfers are supported for these addresses only.
q
Movable DSP Bus Window: Accesses to this region are mapped (by the Page
Map register) to different 512 kB regions of the internal DSP bus.
HP E1433A User's Guide
Register Definitions
A-4
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