Table of Contents
Advertisement
Calibration Status: Base+30 (Read)
Bit:
7
Name:
0
TDBUSY
TDBUSY TrimDAC busy indicator:
0 = User may access TrimDAC.
1 = TrimDAC is being accessed or reload operation is in progress.
EEBUSY EEPROM busy indicator:
0 = User may access EEPROM.
1 = EEPROM is being accessed.
CMUXEN Calibration multiplexer enable status.
0 = disabled
1 = enabled
Note: When either TDBUSY or EEBUSY is set, do not access the data and address registers at
Base+12 and Base+13.
EEPROM Access Key: Base+31 (Write)
Bit:
7
Name:
EEPROM
To access the EEPROM, write the value 0xA5 (10100101) to this register each time, after
Access
setting the PAGE bit in order. This helps prevent accidental corruption of EEPROM contents.
Key
FPGA Revision Code: Base+31 (Read)
Bit:
7
Name:
FPGA
This register indicates the revision number of the FPGA design. The current revision code is
Revision
Code
Hercules III User Manual Rev A.2
6
5
4
EEBUSY CMUXEN
6
5
4
EEPROM Access Key
6
5
4
FPGA Revision Code
www.diamondsystems.com
3
2
0
0
3
2
3
2
0x40.
1
0
0
0
1
0
1
0
Page
62
Advertisement
Table of Contents
