Bustec ProDAQ 3120, Руководство по оборудованию

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ProDAQ 3120 Standard Motherboard Hardware Manual 3120-XX-HM
Copyright, © Bustec Production Ltd. Page
15 of 28
4.2 VXIbus Configuration Registers
4.2.1 CONFIG
This register provides information about the device class, the address space and the manufacturer
ID of the motherboard.
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Initial 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1
Content
Device
Class
Address
Space
Manufacturer ID
Device Class: 11
b
– Register Based
Address Space: 00
b
– A16 / A24
01
b
– A16 / A32
Manufacturer ID:
DE70
h
– A16 / A24
CE70
h
– A16 / A32
The address space can be selected by J1 (jumper not installed
A16/A32 (default), jumper installed A16/A24)
4.2.2 LOGADR
Logical Address of the VXIbus device is a write only register.
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Initial 1 1 1 1 1 1 1 1
Content
Not Used Logical Address
The new logical address becomes available shortly after the
current access cycle has finished (approx. 160 ns).
4.2.3 DEVID
Contains the model code and the required memory
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Initial 0 1 1 1 1 0 1 0 1 1 0 0 0 0 0 1
Content
Required Memory Model Code
Model Code: C30
h
Required Memory: 0111
b
- A16/A32 (16 Mbyte)
0001
b
- A16/A24 (4 Mbyte)