ATA6613P-PLQW Atmel, ATA6613P-PLQW Datasheet - Page 291

• Manufacturer Part Number: ATA6613P-PLQW
• Description: MCU W/LIN TXRX REG WTCHDG 48-QFN
• Manufacturer: Atmel
• Series: AVR® ATA66 LIN-SBCr

Specifications of ATA6613P-PLQW

• 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: 16KB (16K 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: I2C, SPI, 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

6.23.6
9111H–AUTO–01/11
Addressing the Flash During Self-Programming
The Z-pointer is used to address the SPM commands.
Since the Flash is organized in pages (see
can be treated as having two different sections. One section, consisting of the least significant
bits, is addressing the words within a page, while the most significant bits are addressing the
pages. This is1 shown in
are addressed independently. Therefore it is of major importance that the Boot Loader soft-
ware addresses the same page in both the Page Erase and Page Write operation. Once a
programming operation is initiated, the address is latched and the Z-pointer can be used for
other operations.
The only SPM operation that does not use the Z-pointer is Setting the Boot Loader Lock bits.
The content of the Z-pointer is ignored and will have no effect on the operation. The LPM
instruction does also use the Z-pointer to store the address. Since this instruction addresses
the Flash byte-by-byte, also the LSB (bit Z0) of the Z-pointer is used.
Figure 6-116. Addressing the Flash During SPM
Note:
ZH (R31)
ZL (R30)
Z - REGISTER
Bit
1. The different variables used in
PROGRAM MEMORY
BIT
PAGE
PROGRAM
COUNTER
15
Z15
15
Z7
7
PAGE ADDRESS
WITHIN THE FLASH
ZPCMSB
PCMSB
Z14
14
Z6
Figure
6
PCPAGE
6-116. Note that the Page Erase and Page Write operations
Z13
13
Z5
5
Figure 6-116
ZPAGEMSB
PAGEMSB
PCWORD
Z12
12
Z4
4
Table 6-123 on page
Atmel ATA6612/ATA6613
WORD ADDRESS
WITHIN A PAGE
(1)
1
are listed in
Z11
0
0
11
Z3
3
INSTRUCTION WORD
PAGE
Z10
10
Z2
2
Table 6-109 on page
306), the Program Counter
Z9
Z1
9
1
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
Z8
Z0
8
0
298.
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