ATA6612P-PLPW Atmel, ATA6612P-PLPW Datasheet - Page 47
ATA6612P-PLPW
Manufacturer Part Number
ATA6612P-PLPW
Description
MCU W/LIN TXRX REG WTCHDG 48-QFN
Manufacturer
Atmel
Series
AVR® ATA66 LIN-SBCr
Datasheet
1.ATA6612-EK.pdf
(364 pages)
Specifications of ATA6612P-PLPW
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-QFN Exposed Pad
Processor Series
ATA6x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
SPI, TWI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
23
Number Of Timers
3
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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9111H–AUTO–01/11
Table 6-3.
The following code examples show one assembly and one C function for writing to the
EEPROM. The examples assume that interrupts are controlled (e.g. by disabling interrupts
globally) so that no interrupts will occur during execution of these functions. The examples
also assume that no Flash Boot Loader is present in the software. If such code is present, the
EEPROM write function must also wait for any ongoing SPM command to finish.
Symbol
EEPROM write
(from CPU)
• Bit 0 – EERE: EEPROM Read Enable
When the write access time has elapsed, the EEPE bit is cleared by hardware. The user
software can poll this bit and wait for a zero before writing the next byte. When EEPE has
been set, the CPU is halted for two cycles before the next instruction is executed.
The EEPROM Read Enable Signal EERE is the read strobe to the EEPROM. When the
correct address is set up in the EEAR Register, the EERE bit must be written to a logic
one to trigger the EEPROM read. The EEPROM read access takes one instruction, and
the requested data is available immediately. When the EEPROM is read, the CPU is
halted for four cycles before the next instruction is executed.
The user should poll the EEPE bit before starting the read operation. If a write operation is
in progress, it is neither possible to read the EEPROM, nor to change the EEAR Register.
The calibrated Oscillator is used to time the EEPROM accesses.
programming time for EEPROM access from the CPU.
EEPROM Programming Time
Number of Calibrated RC Oscillator Cycles
26,368
Atmel ATA6612/ATA6613
Table 6-3
Typ Programming Time
3.3ms
lists the typical
47
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