ATTIny13-12PI ATMEL Corporation, ATTIny13-12PI Datasheet - Page 102
ATTIny13-12PI
Manufacturer Part Number
ATTIny13-12PI
Description
8-bit AVR Microcontroller with 1K Bytes In-System Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.ATTINY13-12PI.pdf
(169 pages)
- Current page: 102 of 169
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Latching of Fuses
Signature Bytes
Calibration Byte
Page Size
102
ATtiny13
The fuse values are latched when the device enters programming mode and changes of
the fuse values will have no effect until the part leaves Programming mode. This does
not apply to the EESAVE Fuse which will take effect once it is programmed. The fuses
are also latched on Power-up in Normal mode.
All Atmel microcontrollers have a three-byte signature code which identifies the device.
This code can be read in both serial and High-voltage Programming mode, also when
the device is locked. The three bytes reside in a separate address space.
For the ATtiny13 the signature bytes are:
1. 0x000: 0x1E (indicates manufactured by Atmel).
2. 0x001: 0x90 (indicates 1 KB Flash memory).
3. 0x002: 0x07 (indicates ATtiny13 device when 0x001 is 0x90).
Signature area of the ATtiny13 has one byte of calibration data for the internal RC Oscil-
lator. This byte resides in the high byte of address 0x000. During reset, this byte is
automatically written into the OSCCAL Register to ensure correct frequency of the cali-
brated RC Oscillator.
Table 46. No. of Words in a Page and No. of Pages in the Flash
Table 47. No. of Words in a Page and No. of Pages in the EEPROM
512 words (1K byte)
EEPROM Size
Flash Size
64 bytes
Page Size
Page Size
16 words
4 bytes
PCWORD
PCWORD
EEA[1:0]
PC[3:0]
No. of Pages
No. of Pages
16
32
PCPAGE
EEA[5:2]
PCPAGE
PC[8:4]
2535B–AVR–01/04
EEAMSB
PCMSB
5
8
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