Hi,
I have some questions for DAC60501Z register setup method.
If you look at the CONFIG Register at address 0x03h in the DAC60501 data sheet, registers 15~9 and 7~1 are reserved, and only 8 and 0 should be changed.
When actually reading/writing, registers 13~10 and 7~1 are reserved, and registers 15, 14, 9, 8, and 0 seem to be available for writing. And among the reserved registers, number 9 holds 1, so even if 0x0000 or 0x0001 is entered, 0x0002 and 0x0003 seem to come out.
Do you know anything about this results? I am curious about how the reserved register value is determined and how the reserved register can be changed.
[Register w/r results]
|
LSB |
MSB |
||||||||||||||||||
|
Reserved |
REF_PWDWN |
Reserved |
DAC_PWDWN |
||||||||||||||||
|
15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
||||
|
0 |
0 |
0 |
0 |
0 |
0 |
1 |
X |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
X |
||||
|
1. 0x0101 write |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0x0101 set |
-> |
0x0103 get |
|
2. 0xffff write |
1 |
1 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0xffff set |
-> |
0x01c3 get |
|
3. 0x01c3 write |
1 |
1 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0x01c3 set |
-> |
0x01c3 get |
|
4. 0x0081 write |
1 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0x0081 set |
-> |
0x0083 get |
[Schematic]
I think the DAC60501Z's datasheet was revised in August. I would like to inquire about its contents.
When reading the DEVID value of offset:1h in the register map of the DAC60501Z currently in use, it shows 0x1521.
However, if you look at this value in the latest datasheet, it is a value that is read correctly, but if you look at an older version of the datasheet, it seems to be an incorrect value.
In this case, I would like to inquire whether the product currently in use can be considered the latest product with the August Datasheet update applied.
I would like to inquire whether the Register value is not changing due to differences before and after the update.
Thanks for your support in advance!
