ATMEGA8L ATMEL [ATMEL Corporation], ATMEGA8L Datasheet - Page 283

• Manufacturer Part Number: ATMEGA8L
• Description: 8-bit AVR with 8K Bytes In-System Programmable Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Register Summary (Continued)
Notes:
2486M–AVR–12/03
0x01 (0x21)
0x00 (0x20)
Address
1. Refer to the USART description for details on how to access UBRRH and UCSRC.
2. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
3. Some of the Status Flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on
should never be written.
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 0x00 to 0x1F only.
Name
TWSR
TWBR
TWS7
Bit 7
TWS6
Bit 6
TWS5
Bit 5
Two-wire Serial Interface Bit Rate Register
TWS4
Bit 4
TWS3
Bit 3
Bit 2
–
TWPS1
Bit 1
TWPS0
ATmega8(L)
Bit 0
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