Required Vxi Registers; Id Register Base + 00 16 - HP E1313A Manual

Required VXI Registers

ID Register
338 Register-Based Programming
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
The required VXI registers include ID, Device Type, VXI Status, and
VXI Control Registers.
Read only, returns 4FFF
classification, addressing mode, and the manufacturer of the device.
Address 15
Base + 00 Device Class
16
Device Classification: Bits 15 and 14 classify a device as one of the
following:
0 0 Memory device
0 1 Extended device
1 0 Message-based device
1 1 Register-based device
The HP E1313/E1413 is an extended device.
Addressing Mode: Bits 13 and 12 indicate the addressing mode used by the
device:
0 0 A16/A24 address mode
0 1 A16/A32 address mode
1 0 RESERVED
1 1 A16 address mode
The HP E1313/E1413 uses the A16/A24 address mode.
Manufacturer ID: Bits 11 through 0 identify the manufacturer of the device.
Hewlett-Packard's ID number is 4095, which corresponds to bits 11 - 0 being
set to "1".
: The module's ID Register indicates the
16
14 13 12
Address Mode
Base + 00
16
11 - 0
Manufacturer ID
Appendix D