ATMEGA16L-8PC Atmel, ATMEGA16L-8PC Datasheet - Page 165
![IC AVR MCU 16K LV 8MHZ COM 40DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
ATMEGA16L-8PC
Manufacturer Part Number
ATMEGA16L-8PC
Description
IC AVR MCU 16K LV 8MHZ COM 40DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA16L-8PC
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 165 of 357
- Download datasheet (8Mb)
USART Control and
Status Register B –
UCSRB
2466T–AVR–07/10
• Bit 0 – MPCM: Multi-processor Communication Mode
This bit enables the Multi-processor Communication mode. When the MPCM bit is written to
one, all the incoming frames received by the USART receiver that do not contain address infor-
mation will be ignored. The transmitter is unaffected by the MPCM setting. For more detailed
information see
• Bit 7 – RXCIE: RX Complete Interrupt Enable
Writing this bit to one enables interrupt on the RXC Flag. A USART Receive Complete Interrupt
will be generated only if the RXCIE bit is written to one, the Global Interrupt Flag in SREG is writ-
ten to one and the RXC bit in UCSRA is set.
• Bit 6 – TXCIE: TX Complete Interrupt Enable
Writing this bit to one enables interrupt on the TXC Flag. A USART Transmit Complete Interrupt
will be generated only if the TXCIE bit is written to one, the Global Interrupt Flag in SREG is writ-
ten to one and the TXC bit in UCSRA is set.
• Bit 5 – UDRIE: USART Data Register Empty Interrupt Enable
Writing this bit to one enables interrupt on the UDRE Flag. A Data Register Empty Interrupt will
be generated only if the UDRIE bit is written to one, the Global Interrupt Flag in SREG is written
to one and the UDRE bit in UCSRA is set.
• Bit 4 – RXEN: Receiver Enable
Writing this bit to one enables the USART Receiver. The Receiver will override normal port oper-
ation for the RxD pin when enabled. Disabling the Receiver will flush the receive buffer
invalidating the FE, DOR, and PE Flags.
• Bit 3 – TXEN: Transmitter Enable
Writing this bit to one enables the USART Transmitter. The Transmitter will override normal port
operation for the TxD pin when enabled. The disabling of the Transmitter (writing TXEN to zero)
will not become effective until ongoing and pending transmissions are completed, that is, when
the transmit Shift Register and transmit Buffer Register do not contain data to be transmitted.
When disabled, the transmitter will no longer override the TxD port.
• Bit 2 – UCSZ2: Character Size
The UCSZ2 bits combined with the UCSZ1:0 bit in UCSRC sets the number of data bits (Char-
acter Size) in a frame the receiver and transmitter use.
• Bit 1 – RXB8: Receive Data Bit 8
RXB8 is the ninth data bit of the received character when operating with serial frames with nine
data bits. Must be read before reading the low bits from UDR.
Bit
Read/Write
Initial Value
RXCIE
R/W
7
0
“Multi-processor Communication Mode” on page
TXCIE
R/W
6
0
UDRIE
R/W
5
0
RXEN
R/W
4
0
TXEN
R/W
3
0
UCSZ2
R/W
2
0
RXB8
161.
R
1
0
ATmega16(L)
TXB8
R/W
0
0
UCSRB
165
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