ATTINY2313V-10MUR Atmel, ATTINY2313V-10MUR Datasheet - Page 154
ATTINY2313V-10MUR
Manufacturer Part Number
ATTINY2313V-10MUR
Description
MCU AVR 2KB FLASH 10MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY2313V-10MUR
Core Processor
AVR
Core Size
8-Bit
Speed
10MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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Addressing the
Flash During Self-
Programming
154
ATtiny2313
The Z-pointer is used to address the SPM commands.
Since the Flash is organized in pages (see
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 is shown in
independently. Therefore it is of major importance that the software addresses the same page in
both the Page Erase and Page Write operation.
The LPM instruction uses 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 68. Addressing the Flash During SPM
Note:
Bit
ZH (R31)
ZL (R30)
Z - REGISTER
1. The different variables used in
PROGRAM MEMORY
BIT
Z15
PAGE
15
Z7
PROGRAM
COUNTER
7
15
Figure
PAGE ADDRESS
WITHIN THE FLASH
Z14
ZPCMSB
68. Note that the Page Erase and Page Write operations are addressed
14
Z6
PCMSB
6
PCPAGE
Z13
13
Z5
5
Figure 68
Z12
12
Z4
4
ZPAGEMSB
PAGEMSB
Table 69 on page
PCWORD
(1)
WORD ADDRESS
WITHIN A PAGE
are listed in
Z11
11
Z3
3
1
0
0
INSTRUCTION WORD
Z10
10
Z2
2
Table 69 on page
PAGE
160), the Program Counter can be
Z9
Z1
9
1
Z8
Z0
8
0
160.
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
2543L–AVR–08/10
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