ATMEGA406-1AAU Atmel, ATMEGA406-1AAU Datasheet - Page 111

• Manufacturer Part Number: ATMEGA406-1AAU
• Description: IC AVR MCU 40K 1MHZ 48LQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA406-1AAU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 1MHz
• Connectivity: I²C
• Peripherals: POR, WDT
• Number Of I /o: 18
• Program Memory Size: 40KB (20K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 25 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -30°C ~ 85°C
• Package / Case: 48-LQFP
• Processor Series: ATMEGA48x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: 2-Wire
• Maximum Clock Frequency: 1 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 30 C
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 1MHz
• Total Internal Ram Size: 2KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5/9/12/15/18/24V
• Operating Supply Voltage (max): 25V
• Operating Supply Voltage (min): 4V
• On-chip Adc: 10-chx12-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -30C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Controller Family/series: AVR MEGA
• No. Of I/o's: 18
• Eeprom Memory Size: 512Byte
• Ram Memory Size: 2KB
• Cpu Speed: 1MHz
• Rohs Compliant: Yes
• For Use With: 770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.2.3
18.2.4
2548E–AVR–07/06
CADICH and CADICL – CC-ADC Instantaneous Current
CADAC3, CADAC2, CADAC1 and CADAC0 – CC-ADC Accumulate Current
The CADRCIF bit is set (one) when the absolute value of the result of the last CC-ADC conver-
sion is greater than, or equal to, the compare values set by the CC-ADC Regular
Charge/Discharge Current Level Registers. A positive value is compared to the Regular Charge
Current Level, and a negative value is compared to the Regular Discharge Current Level. The
CC-ADC Regular Current Interrupt is executed if the CADRCIE bit and the I-bit in SREG are set
(one). CADRCIF is cleared by hardware when executing the corresponding Interrupt Handling
vector. Alternatively, CADRCIF is cleared by writing a logic one to the flag.
• Bit 0 – CADICIF: CC-ADC Instantaneous Current Interrupt Flag
The CADICIF bit is set (one) when a CC-ADC Instantaneous Current conversion is completed.
The CC-ADC Instantaneous Current Interrupt is executed if the CADICIE bit and the I-bit in
SREG are set (one). CADICIF is cleared by hardware when executing the corresponding Inter-
rupt Handling vector. Alternatively, CADICIF is cleared by writing a logic one to the flag.
When a CC-ADC Instantaneous Current conversion is complete, the result is found in these two
registers. CADIC15:0 represents the converted result in 2's complement format, sign extended
to 16 bits.
When CADICL is read, the CC-ADC Instantaneous Current register is not updated until CADCH
is read. Reading the registers in the sequence CADICL, CADICH will ensure that consistent val-
ues are read.
The CADAC3, CADAC2, CADAC1 and CADAC0 Registers contain the Accumulate Current
measurements in 2’s complement format, sign extended to 32 bits.
Bit
(0xE9)
(0xE8)
Bit
Read/Write
Initial Value
Bit
(0xE3)
(0xE2)
(0xE1)
(0xE0)
Read/Write
Initial Value
15
R
R
31
23
15
7
0
0
R
R
R
7
0
0
0
14
30
22
14
R
R
6
0
0
R
R
R
6
0
0
0
13
29
21
13
R
R
5
0
0
R
R
R
5
0
0
0
12
28
20
12
CADAC[31:24]
CADAC[23:16]
R
R
R
R
R
4
0
0
4
CADAC[15:8]
0
0
0
CADIC[15:8]
CADAC[7:0]
CADIC[7:0]
11
27
19
11
R
R
3
0
0
3
R
R
R
0
0
0
10
26
18
10
R
R
R
R
R
2
0
0
2
0
0
0
25
17
R
R
R
R
R
9
1
0
0
9
1
0
0
0
ATmega406
24
16
R
R
R
R
R
8
0
0
0
0
8
0
0
0
CADAC3
CADAC2
CADAC1
CADAC0
CADICH
CADICL
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