SIS Documentation
SIS3820
VME Scaler
Page 21 of 79
7.2 Module Id. and Firmware Revision Register (0x4, read)
#define SIS3820_MODID
0x4
/* read only; D32 */
This register reflects the module identification of the SIS3820 and its minor and major
firmware revision levels. The major revision level will be used to distinguish between
substantial design differences and experiment specific designs, while the minor revision level
will be used to mark user specific adaptations.
Bit Function
Reading
31
Module Id. Bit 15
30
Module Id. Bit 14
29
Module Id. Bit 13
28
Module Id. Bit 12
3
27
Module Id. Bit 11
26
Module Id. Bit 10
25
Module Id. Bit 9
24
Module Id. Bit 8
8
23
Module Id. Bit 7
22
Module Id. Bit 6
21
Module Id. Bit 5
20
Module Id. Bit 4
2
19
Module Id. Bit 3
18
Module Id. Bit 2
17
Module Id. Bit 1
16
Module Id. Bit 0
0
15
Major Revision Bit 7
14
Major Revision Bit 6
13
Major Revision Bit 5
12
Major Revision Bit 4
11
Major Revision Bit 3
10
Major Revision Bit 2
9
Major Revision Bit 1
8
Major Revision Bit 0
7
Minor Revision Bit 7
6
Minor Revision Bit 6
5
Minor Revision Bit 5
4
Minor Revision Bit 4
3
Minor Revision Bit 3
2
Minor Revision Bit 2
1
Minor Revision Bit 1
0
Minor Revision Bit 0
7.2.1 Major revision numbers
Find below a table with major revision numbers used/reserved to date
Major revision number
Application/user
0x01
Generic SIS3820 32 channel scaler design
0xE0 SIS3820-CLOCK
0xF0 SIS3820-LATCH
