ATmega406 Atmel Corporation, ATmega406 Datasheet - Page 130

• Manufacturer Part Number: ATmega406
• Manufacturer: Atmel Corporation

Specifications of ATmega406

• Flash (kbytes): 40 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 1 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 18
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1.9
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 2
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -30 to 85
• I/o Supply Class: 4.0 to 25
• Operating Voltage (vcc): 4.0 to 25
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Pwm Channels: 2
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

22.7.4
22.7.5
130
ATmega406
BPOCD – Battery Protection Over-current Detection Level Register
BPSCD – Battery Protection Short-circuit Detection Level Register
• Bits 7:4 – DCDL3:0: Discharge Over-current Detection Level
These bits set the R
Table
Table 22-4.
• Bits 3:0 – CCDL3:0: Charge Over-current Detection Level
These bits set the R
22-5.
Table 22-5.
• Bit 7:4 – Res: Reserved Bits
These bits are reserved bits in the ATmega406 and will always read as zero.
• Bits 3:0 – SCDL3:0: Short-circuit Detection Level
These bits set the RSENSE voltage level for detection of Short-circuit in the discharge direction,
as defined in
Bit
(0xF5)
Read/Write
Initial Value
Bit
(0xF4)
Read/Write
Initial Value
DCDL[3:0]
CCDL[3:0]
0000
0001
0010
0011
0000
0001
0010
0011
22-4.
Table 22-6 on page
DCDL[3:0] with Corresponding R
tion Level
CCDL[3:0] with Corresponding R
Level
0.050V
0.055V
0.060V
0.065V
0.050V
0.055V
0.060V
0.065V
R/W
Typ
Typ
R
7
0
7
–
0
SENSE
SENSE
Discharge Over-current Protection Detection Level
Charge Over-current Protection Detection Level
R/W
DCDL[3:0]
CCDL[3:0]
voltage level for detection of Charge Over-current, as defined in
R
6
0
6
–
0
voltage level for detection of Discharge Over-current, as defined in
DCDL[3:0]
0100
0101
0110
0111
0100
0101
0110
0111
131.
R/W
R
5
–
0
5
0
0.070V
0.080V
0.090V
0.100V
0.070V
0.080V
0.090V
0.100V
Typ
Typ
R/W
R
4
0
4
–
0
SENSE
SENSE
DCDL[3:0]
CCDL[3:0]
R/W
R/W
1000
1001
1010
1011
1000
1001
1010
1011
Voltage for Charge Over-current Detection
Voltage for Discharge Over-current Detec-
3
0
3
0
R/W
R/W
2
0
2
0
CCDL[3:0]
0.110V
0.120V
0.130V
0.140V
0.110V
0.120V
0.130V
0.140V
SCDL[3:0]
Typ
Typ
R/W
R/W
1
0
1
0
DCDL[3:0]
CCDL[3:0]
1100
1101
1110
1111
1100
1101
1110
1111
R/W
R/W
0
0
0
0
2548E–AVR–07/06
0.160V
0.180V
0.200V
0.220V
0.160V
0.180V
0.200V
0.220V
BPOCD
BPSCD
Typ
Typ
Table