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LTDVE4CH-20 | INSTRUCTIONS MANUAL
65535 measurement
247
CALIB_VLT_ADD1
R
0-
65535
Calibration constant for LD2 voltage
measurement
248
CALIB_VLT_MUL1
R
0-
65535
Calibration constant for LD2 voltage
measurement
249
CALIB_VLT_ADD2
R
0-
65535
Calibration constant for LD3 voltage
measurement
250
CALIB_VLT_MUL2
R
0-
65535
Calibration constant for LD3 voltage
measurement
251
CALIB_VLT_ADD3
R
0-
65535
Calibration constant for LD4 voltage
measurement
252
CALIB_VLT_MUL3
R
0-
65535
Calibration constant for LD4 voltage
measurement
253
UNUSED
N/A N/A
254
UNUSED
N/A N/A
255
UNUSED
N/A N/A
256
UNUSED
N/A N/A
257
UNUSED
N/A N/A
258
UNUSED
N/A N/A
259
UNUSED
N/A N/A
260
UNUSED
N/A N/A
261
CALIB_UNLOCK
R
0-
65535
Unlock code for the calibration constants
262-510
SPARE[0:247]
N/A N/A
Reserved for future use
511
BOARD_COMMAND
RW 0-3
Board command
Table 15: controller register file
As indicated in the table, most of the registers can be both read and written (type RW), some
registers are read only (type R) and some others are reserved (type N/A). Registers marked as
reserved must not be accessed, either in reading and writing, at any time. Failure to comply with this
provision may lead to device malfunction. The accessible registers are described in the following
sections.
Changes to the register file are not saved in non-volatile memory until a specific command is issued
to the controller. See the description of register
BOARD_COMMAND
in the next sections for more
information on this subject.
In the following sections, the 0x prefix is used to denote a hexadecimal number. The prefix 0x is used
in C and related languages.
14.2.1. Register DEVICE_TYPE
This register contains the device type. This information is encoded as a 16-bit unsigned number. For
the standard LTDVE4CH-20 the device type is 0x0007.