Internal Register File; Firmware Id Register - Read Only; Global Mode Register - Read/Write - Wiener VM-USB User Manual

3.4 Internal Register File

Writing/reading to/from the internal register file is done by executing a 32 bit VME
write/read command with the VME offset assigned to a given register, while bit 12 (value
4096) of the VME command word is set to 1. Details about the VME command word are
found in section 4.5
Table 2. Register VME address offsets and their functionality
Offset
HEX Dec
0x0 0
0x4 4
0x8 8
0xC 12
0x10 16
0x14 20
0x18 24
0x1C 28
0x20 32
0x24 36
0x28 40
0x2C 44
0x30 48
0x34 52
0x38 56
0x3C 60

3.4.1 Firmware ID Register - Read only

Offset = 0 / 0x0
29-31
Month
This Firmware ID register identifies the acting FPGA firmware in eight hexadecimal digits
MYBBFFRR, where M and Y represent the month and year of creation, B represents beta
version, and F and R represent the firmware main and revision numbers, respectively. Please
see the notes about the different firmware features in the Appendix section of this manual.
3.4.2 Global Mode Register – Read/Write
Offset = 4 / 0x4
The global mode register has the following 16-bit structure:
Bits 15 14 13 12
Value -
WIENER, Plein & Baus GmbH
Register
Firmware ID
Global Mode
Data Acquisition Settings
User LED Source Selector
User Devices Source Selector
DGG_A Delay/Gate Settings
DGG_B Delay/Gate Settings
Scaler_A Data
Scaler_B Data
Number Extract Mask
Interrupt Service Vectors 1 + 2
Interrupt Service Vectors 3 + 4
Interrupt Service Vectors 5 + 6
Interrupt Service Vectors 7 + 8
Extended DGG_A/B Delay Settings
USB Bulk Transfer Setup
24-28
Year Beta Version
11 - 9
BusReq -
16-23 8-15
Major Revision
8 7
HeaderOpt -
16
Note
32 bits, Read-only
16 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Clear/Enable
32 bits, Read/Clear/Enable
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
32 bits, Read/Write
0-7
Minor Revision
6 5
EvtSepOpt -
www.wiener-d.com
4 3 - 0
B u f f O p t