Jumpers Configuration
1.4.2.2 Base Address Decoding via Jumpers BR1 and BR2
The setting of the base board address ensues via jumpers at the
jumperfields BR1 and BR2. The base address can be selected in steps
of 256 bytes over the whole address range of 16 Mbytes. Furthermore,
it is possible to use the VME addressing ’SHORT I/O’. At this ad-
dressing the address lines A16 to A23 are ignored and the base
address of the VME-ASIO16 is placed into the ’SHORT I/O’ address
range (64 kbytes) of the VMEbus system.
The address decoder logic generates a ’CARDSELECT’ signal, which
serves as an enable signal for the decoder logic of the DUARTs.
A23...A16 A15...A8 A7...A1
local components
A16 VMEbus
base address
A24 VMEbus base address
An inserted jumper corresponds to ’0’ (low) level of an address bit.
BR1
BR2
1
2
1
2
o
o
A15
o
o
A23
o
o
A14
o
o
A22
o
o
A13
o
o
A21
o
o
A12
o
o
A20
o
o
A11
o
o
A19
o
o
A10
o
o
A18
o
o
A9
o
o
A17
o
o
A8
o
o
A16
15
16
15
16
Standard setting of the base address: $800000
VME-ASIO16 Rev. 1.7
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Содержание VME - ASIO16
Страница 1: ...VME VME ASIO16 ASIO16 16 16 serial serial Interfaces Interfaces VME ASIO16 Rev 1 7 ...
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Страница 9: ...Overview 1 Hardware 1 1 Block Diagram Fig 1 1 1 Block Diagram of the VME ASIO16 VME ASIO16 Rev 1 7 5 ...
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Страница 59: ...Front Panel 3 4 Front Panel VME ASIO16 Rev 1 7 55 ...
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Страница 63: ...Data Sheets 3 6 Data Sheets The data sheets are not included in the PDF file VME ASIO16 Rev 1 7 59 ...
