ATA6612C View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

ATA6612C

8K/16K Flash Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Atmel Corporation 

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5.5 AVR Atmel ATA6612C/ATA6613C Memories

This section describes the different memories in the Atmel® ATA6612C/ATA6613C. The AVR® architecture has two main

memory spaces, the data memory and the program memory space. In addition, the Atmel ATA6612C/ATA6613C features

an EEPROM memory for data storage. All three memory spaces are linear and regular.

5.5.1

In-System Reprogrammable Flash Program Memory

The Atmel ATA6612C/ATA6613C contains 8/16Kbytes on-chip in-system reprogrammable flash memory for program

storage. Since all AVR instructions are 16 or 32 bits wide, the flash is organized as 2/4/8K × 16. For software security, the

flash program memory space is divided into two sections, boot loader section and application program section in Atmel

ATA6612C and ATA6613C. See SELFPRGEN description in section Section 5.23.5.1 “Store Program Memory Control and

Status Register – SPMCSR” on page 244 for more details.

The flash memory has an endurance of at least 75,000 write/erase cycles. The Atmel ATA6612C/ATA6613C program

counter (PC) is 11/12/13 bits wide, thus addressing the 2/4/8K program memory locations. The operation of boot program

section and associated boot lock bits for software protection are described in detail in Section 5.23 “Boot Loader Support –

Read-While-Write Self-Programming, Atmel ATA6612C and ATA6613C” on page 240. Section 5.24 “Memory Programming”

on page 253 contains a detailed description on flash programming in SPI- or parallel programming mode.

Constant tables can be allocated within the entire program memory address space (see the LPM – load program memory

instruction description).

Timing diagrams for instruction fetch and execution are presented in Section 5.4.7 “Instruction Execution Timing” on page

36.

Figure 5-7. Program Memory Map, Atmel ATA6612C/ATA6613C

Program Memory

0x0000

Application Flash Section

0x7FF

38 ATA6612C/ATA6613C [DATASHEET]

9111L–AUTO–11/14

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