ATmega16 datasheet(347/357 Pages) ATMEL

347 / 357 page

347

2466S–AVR–05/09

ATmega16(L)

Updated assembly and C code examples in “Watchdog Timer Control Register –

WDTCR” on page 43.

Updated Figure 46 on page 103.

Updated Table 15 on page 38, Table 82 on page 217 and Table 115 on page 276.

Updated “Test Access Port – TAP” on page 222 regarding JTAGEN.

Updated description for the JTD bit on page 231.

Added note 2 to Figure 126 on page 252.

10. Added a note regarding JTAGEN fuse to Table 105 on page 260.

11. Updated Absolute Maximum Ratings* and DC Characteristics in “Electrical Character-

istics” on page 291.

12. Updated “ATmega16 Typical Characteristics” on page 299.

13. Fixed typo for 16 MHz QFN/MLF package in “Ordering Information” on page 336.

14. Added a proposal for solving problems regarding the JTAG instruction IDCODE in

“Errata” on page 340.

Rev. 2466F-02/03

Added note about masking out unused bits when reading the Program Counter in

“Stack Pointer” on page 12.

Added Chip Erase as a first step in “Programming the Flash” on page 288 and “Pro-

gramming the EEPROM” on page 289.

Added the section “Unconnected pins” on page 55.

Added tips on how to disable the OCD system in “On-chip Debug System” on page

34.

Removed reference to the “Multi-purpose Oscillator” application note and “32 kHz

Crystal Oscillator” application note, which do not exist.

Added information about PWM symmetry for Timer0 and Timer2.

Added note in “Filling the Temporary Buffer (Page Loading)” on page 253 about writ-

ing to the EEPROM during an SPM Page Load.

Removed ADHSM completely.

Added Table 73, “TWI Bit Rate Prescaler,” on page 182 to describe the TWPS bits in

the “TWI Status Register – TWSR” on page 181.

10. Added section “Default Clock Source” on page 25.

11. Added note about frequency variation when using an external clock. Note added in

“External Clock” on page 31. An extra row and a note added in Table 118 on page 293.

ATmega16 데이터시트(PDF) 347 Page - ATMEL Corporation