ATmega16A datasheet(335/352 Pages) ATMEL

Part #	ATmega16A

Description	8-bit Microcontroller with 16K Bytes In-System Programmable Flash

PDF	352 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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335 / 352 page

335

8154B–AVR–07/09

ATmega16A

Notes:

1. When the OCDEN Fuse is unprogrammed, the OSCCAL Register is always accessed on this address. Refer to the debug-

ger specific documentation for details on how to use the OCDR Register.

2. Refer to the USART description for details on how to access UBRRH and UCSRC.

3. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses

should never be written.

4. Some of the Status Flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on

all bits in the I/O Register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions

work with registers $00 to $1F only.

$01 ($21)

TWSR

TWS7

TWS6

TWS5

TWS4

TWS3

–

TWPS1

TWPS0

202

$00 ($20)

TWBR

Two-wire Serial Interface Bit Rate Register

200

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Page

ATmega16A Datasheet(PDF) 335 Page - ATMEL Corporation