SIS Documentation
SIS3820
VME Scaler
Page 18 of 79
0x800 to 0x87C
R
D32/BLT32
Shadow registers
0xA00 to 0xA7C
R
D32/BLT32
Counter registers
0x800000 to
0xfffffc
W
R
D32/BLT32
D32/BLT32/
MBLT64/2eVme
SDRAM or FIFO space array
(address window for page of 8 Mbytes)
Notes:
1.)
SDRAM (FIFO respective ) write access with active MCS mode will result in a VME
bus error. In MCS mode the memory is reserved for storage of the counter values.
2.)
firmware 01 0A indicates revision 01 0A and higher unless otherwise
The shorthand KA stands for key address. Write access with arbitrary data to a key address
initiates the specified function
7 Register
description
The function of the individual registers is described in detail in this section.
The first line after the subsection header (in Courier font) like:
#define SIS3820_CONTROL_STATUS 0x0
/* read/write; D32 */
refers to the sis3820.h header file.