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| DS3901E Datasheet, PDF (13/20 Pages) Maxim Integrated Products – Triple, 8-Bit NV Variable Resistor with Dual Settings and User EEPROM | |||
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Triple, 8-Bit NV Variable Resistor
with Dual Settings and User EEPROM
MEMORY REGISTERS 94hâ97h: PW2 PASSWORD SETTING
Factory Default:
Access Without Password:
Access With PW1 Password:
Access With PW2 Password:
Memory Type:
00000000h
None
None
Write only
Nonvolatile (EEPROM)
94h
231
230
229
228
227
226
225
224
95h
223
222
221
220
219
218
217
216
96h
215
214
213
212
211
210
29
28
97h
27
26
25
24
23
22
21
20
b7
b0
These four bytes contain the password used to access
memory that is protected by the PW2 password.
MEMORY REGISTER 98h: RESISTOR 0, BANK 0
Factory Default:
Access Without Password:
Access With PW1 Password:
Access With PW2 Password:
Memory Type:
7Fh
Read only
Read only
Read and Write
Nonvolatile (EEPROM)
27
26
25
24
23
22
21
20
98h
b7
b0
This register contains the Bank 0 values for Resistor 0.
The ORâd result of the state of the BSC bit (bit 3, 84h)
and the BK_SEL pin determines if Resistor 0 Bank 0 or
Resistor 0 Bank 1 is used for the Resistor 0 setting. See
the Configuration Register in Register 84h for logic
details.
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