ATMEGA406-1AAU Atmel, ATMEGA406-1AAU Datasheet - Page 110

• 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

18.2.2
110
ATmega406
CADCSRB – CC-ADC Control and Status Register B
• Bits 2:1 – CADSI1:0: CC-ADC Current Sampling Interval
The CADSI bits determine the current sampling interval for the Regular Current detection as
shown in
Table 18-2.
Notes:
• Bit 0 – CADSE: CC-ADC Current Sampling Enable
When the CADSE bit is written to one, the ongoing CC-ADC conversion is aborted, and the CC-
ADC enters Regular Current detection mode.
• Bits 7, 3 – Res: Reserved
These bits are reserved bits in the ATmega406 and will always read as zero.
• Bit 6 – CADACIE: CC-ADC Accumulate Current Interrupt Enable
When the CADACIE bit is set (one), and the I-bit in the Status Register is set (one), the CC-ADC
Accumulate Current Interrupt is enabled.
• Bit 5 – CADRCIE: CC-ADC Regular Current Interrupt Enable
When the CADRCIE bit is set (one), and the I-bit in the Status Register is set (one), the CC-ADC
Regular Current Interrupt is enabled.
• Bit 4 – CADICIE: CC-ADC Instantaneous Current Interrupt Enable
When the CADICIE bit is set (one), and the I-bit in the Status Register is set (one), the CC-ADC
Instantaneous Current Interrupt is enabled.
• Bit 2 – CADACIF: CC-ADC Accumulate Current Interrupt Flag
The CADACIF bit is set (one) after the Accumulate Current conversion has completed. The CC-
ADC Accumulate Current Interrupt is executed if the CADACIE bit and the I-bit in SREG are set
(one). CADACIF is cleared by hardware when executing the corresponding Interrupt Handling
Vector. Alternatively, CADACIF is cleared by writing a logic one to the flag.
• Bit 1 – CADRCIF: CC-ADC Regular Current Interrupt Flag
Bit
(0xE5)
Read/Write
Initial Value
1. The actual value of depends on the actual frequency of the
2. Sampling time ~ 12 ms.
CADSI1:0
Table
See
00
01
10
11
CC-ADC Regular Current Sampling Interval
”Electrical Characteristics” on page
R
7
–
0
18-2. The current sampling interval is only used if the CADSE bit is set.
CADACIE
R/W
6
0
CADRCIE
R/W
5
0
CC-ADC Regular Current Sampling Interval
CADICIE
R/W
4
0
225.
250 ms (+ sampling time)
500 ms (+ sampling time)
1 s (+ sampling time)
2 s (+ sampling time)
R
3
–
0
CADACIF
R/W
2
0
”Slow RC Oscillator” on page
CADRCIF
R/W
1
0
CADICIF
R/W
(1)(2)
0
0
2548E–AVR–07/06
CADCSRB
27.