ds2782 Maxim Integrated Products, Inc., ds2782 Datasheet - Page 18

• Manufacturer Part Number: ds2782
• Description: Ds2782 Stand-alone Fuel Gauge Ic
• Manufacturer: Maxim Integrated Products, Inc.

CONTROL REGISTER
All CONTROL register bits are read and write accessible. The CONTROL register is recalled from Parameter
EEPROM memory at power-up. Register bit values can be modified in shadow RAM after power-up. Shadow RAM
values can be saved as the power up default values by using the Copy Data command.
Figure 15. Control Register Format
Field
Reserved
UVEN
PMOD
Reserved
SPECIAL FEATURE REGISTER
All Special Feature Register bits are read and write accessible, with default values specified in each bit definition.
Figure 16. Special Feature Register Format
Field
Reserved
SAWE
PIOSC
EEPROM REGISTER
The EEPROM register provides access control of the EEPROM blocks. EEPROM blocks can be locked to prevent
alteration of data within the block. Locking a block disables write access to the block. Once a block is locked, it
cannot be unlocked. Read access to EEPROM blocks is unaffected by the lock/unlock status.
Address
Address
60h
15h
0:4
2:7
Bit
Bit
7
6
5
1
0
Read/Write
Read/Write
Read/Write
Read/Write
Format
Format
Allowable Values
Undefined
Under Voltage SLEEP Enable
0: Disables transition to SLEEP mode based on VIN voltage
1: Enables transition to SLEEP mode if,
Power Mode Enable
0: Disables transition to SLEEP mode based on SDA, SCL logic state
1: Enables transition to SLEEP mode if SDA, SCL at a logic low for
t
Undefined
Allowable Values
Undefined
Slave Address Write Enable
0: Disables writes to the Slave Address Register
1: Enables writes to the Slave Address Register
Power-up default: 0 (writes disabled)
PIO Sense and Control
Read values
0: PIO pin ≤ Vil
1: PIO pin ≥ Vih
Write values
0: Activates PIO pin open-drain output driver, forcing the PIO pin low
1: Disables the output driver, allowing the PIO pin to be pulled high or
Power-up and SLEEP mode default: 1 (PIO pin is hi-Z)
Note: PIO pin has weak pulldown
SLEEP
VIN < V
used as an input
18 of 25
SLEEP
AND SDA, SCL stable at either logic level for t
Bit Definition
Bit Definition
SLEEP