STC3100 STMicroelectronics, STC3100 Datasheet - Page 14

• Manufacturer Part Number: STC3100
• Description: Battery monitor IC with Coulomb counter/gas gauge
• Manufacturer: STMicroelectronics

I2C interface
8.2
14/21
Register map
The register space provides 12 control registers, 8 read-only (factory OTP) registers for
unique device ID and 32 read/write general-purpose RAM registers. Mapping of all registers
is shown in
are shown in
reset, and the PORDET bit in register REG_CTRL is used to indicate the occurrence of a
power-on reset.
Table 9.
Control registers
REG_MODE
REG_CTRL
REG_CHARGE_LOW
REG_CHARGE_HIGH
REG_COUNTER_LOW
REG_COUNTER_HIGH
REG_CURRENT_LOW
REG_CURRENT_HIGH
REG_VOLTAGE_LOW
REG_VOLTAGE_HIGH
REG_TEMPERATURE_LOW
REG_TEMPERATURE_HIGH
Device ID registers
REG_ID0
REG_ID1
REG_ID2
REG_ID3
REG_ID4
REG_ID5
REG_ID6
REG_ID7
RAM registers
REG_RAM0
...
REG_RAM31
Table
Register map
Name
Table 10
9. Detailed descriptions of registers 0 (REG_MODE) and 1 (REG_CTRL)
and
Table
11. All registers are reset to default values at power-on or
(decimal)
Address
24 to 31
32 to 63
0 to 23
10
11
24
25
26
27
28
29
30
31
32
63
...
0
1
2
3
4
5
6
7
8
9
Type
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Mode register
Control and status register
Gas gauge charge data, bits 0-7
Gas gauge charge data, bits 8-15
Number of conversions, bits 0-7
Number of conversions, bits 8-15
Battery current value, bits 0-7
Battery current value, bits 8-15
Battery voltage value, bits 0-7
Battery voltage value, bits 8-15
Temperature value, bits 0-7
Temperature value, bits 8-15
Part type ID = 10h
Unique part ID, bits 0-7
Unique part ID, bits 8-15
Unique part ID, bits 16-23
Unique part ID, bits 24-31
Unique part ID, bits 32-39
Unique part ID, bits 40-47
Device ID CRC
General-purpose RAM register 0
...
General-purpose RAM register 31
Description
STC3100