MAX6884ETP MAXIM [Maxim Integrated Products], MAX6884ETP Datasheet - Page 22

• Manufacturer Part Number: MAX6884ETP
• Description: EEPROM-Programmable, Hex Power-Supply Supervisory Circuits
• Manufacturer: MAXIM [Maxim Integrated Products]

Lock the configuration register bank and configuration
EEPROM contents after initial programming by setting
the lock bit high (see
tion prevents write operations to configuration EEPROM
and configuration registers except the configuration
lock bit. Set the lock bit to 0 to reconfigure the device.
EEPROM-Programmable, Hex
Power-Supply Supervisory Circuits
Table
*Does not matter if set as undervoltage or overvoltage.
Table
22
REGISTER
ADDRESS
REGISTER
ADDRESS
______________________________________________________________________________________
2Ah
28h
29h
16h
9. Fault Registers (28h–2Ah)
10. Configuration Lock Bit
BIT RANGE
Table
[7:6]
[7:6]
[6:2]
ADDRESS
MEMORY
[0]
[1]
[2]
[3]
[4]
[5]
[0]
[1]
[2]
[3]
[4]
[5]
[0]
[1]
[7]
EEPROM
96h
10). Locking the configura-
1 = IN1 Voltage Falls Below Primary Undervoltage Threshold
1 = IN2 Voltage Falls Below Primary Undervoltage Threshold
1 = IN3 Voltage Falls Below Primary Undervoltage Threshold
1 = IN4 Voltage Falls Below Primary Undervoltage Threshold
1 = IN5 Voltage Falls Below Primary Undervoltage Threshold
1 = IN6 Voltage Falls Below Primary Undervoltage Threshold
Unused
1 = IN1* Voltage Falls Below Secondary Threshold
1 = IN2* Voltage Falls Below Secondary Threshold
1 = IN3* Voltage Falls Below Secondary Threshold
1 = IN4* Voltage Falls Below Secondary Threshold
1 = IN5* Voltage Falls Below Secondary Threshold
1 = IN6* Voltage Falls Below Secondary Threshold
Unused
1 = UV/OV Has Been Asserted
1 = RESET Has Been Asserted
Unused
1 = WDO Has Been Asserted
Configuration Lock
BIT RANGE
[3]
1 = Configuration Locked
0 = Configuration Unlocked
A unique write disable feature protects the
MAX6884/MAX6885 from inadvertent user EEPROM
writes. As input voltages that power the serial interface,
a µP, or any other writing devices fall, unintentional
data may be written onto the data bus. The user
EEPROM write-disable function (see
that unintentional data does not corrupt the MAX6884/
MAX6885 user EEPROM data.
DESCRIPTION
DESCRIPTION
Table
Write Disable
11) ensures