ATAVRSB202 Atmel, ATAVRSB202 Datasheet - Page 39
ATAVRSB202
Manufacturer Part Number
ATAVRSB202
Description
KIT BATT MGMT FOR ATMEGA32HVB
Manufacturer
Atmel
Specifications of ATAVRSB202
Main Purpose
*
Embedded
*
Utilized Ic / Part
*
Primary Attributes
*
Secondary Attributes
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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10.7.3
10.7.4
10.7.5
10.7.6
10.7.7
10.8
10.8.1
8042B–AVR–06/10
Register Description
On-chip Debug System
Battery Protection
Voltage ADC
Coulomb Counter
Bandgap Voltage Reference
SMCR – Sleep Mode Control Register
some cases, the input logic is needed for detecting wake-up conditions, and it will then be
enabled. Refer to the section
which pins are enabled. If the input buffer is enabled and the input signal is left floating or have
an analog signal level close to V
For analog input pins, the digital input buffer should be disabled at all times. An analog signal
level close to V
input buffers can be disabled by writing to the Digital Input Disable Register. Refer to
Digital Input Disable Register 0” on page 122
A programmed DWEN Fuse enables some parts of the clock system to be running in all sleep
modes. This will increase the power consumption while in sleep. Thus, the DWEN Fuse should
be disabled when debugWire is not used.
If one of the Battery Protection features is not needed by the application, this feature should be
disabled, see “BPCR – Battery Protection Control Register” on page 141. The current consump-
tion in the Battery Protection circuitry is only significant in Power-save mode. Disabling both
FETs will automatically disable the Battery Protection module in order to save power. The band-
gap reference should always be enabled whenever Battery Protection is enabled.
If enabled, the V-ADC will consume power independent of sleep mode. To save power, the V-
ADC should be disabled when not used, and before entering Power-save sleep mode. See
”Voltage ADC – 7-channel General Purpose 12-bit Sigma-Delta ADC” on page 117
V-ADC operation.
If enabled, the CC-ADC will consume power independent of sleep mode. To save power, the
CC-ADC should be disabled when not used, or set in Regular Current detection mode. See
”Coulomb Counter – Dedicated Fuel Gauging Sigma-delta ADC” on page 108
ADC operation.
If enabled, the Bandgap reference will consume power independent of sleep mode. To save
power, the Bandgap reference should be disabled when not used as reference for the Voltage
ADC, the Coloumb Counter or Battery Protection. See
Sensor” on page 123
The Sleep Mode Control Register contains control bits for power management.
Bit
0x33 (0x53)
Read/Write
Initial Value
REG
R
7
–
0
/2 on an input pin can cause significant current even in active mode. Digital
for details.
R
6
–
0
”Digital Input Enable and Sleep Modes” on page 71
REG
R
5
–
0
/2, the input buffer will use excessive power.
R
4
–
0
for details.
SM2
ATmega16HVB/32HVB
R/W
3
0
”Voltage Reference and Temperature
SM1
R/W
2
0
SM0
R/W
1
0
for details on CC-
R/W
SE
0
0
for details on
for details on
”DIDR0 –
SMCR
39
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