ATMEGA162V-1AC Atmel, ATMEGA162V-1AC Datasheet - Page 187

• Manufacturer Part Number: ATMEGA162V-1AC
• Description: IC MCU AVR 16K 1.8V 8MHZ 44-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162V-1AC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 1MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• 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): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

USART Baud Rate Registers –
UBRRL and UBRRH
2513C–AVR–09/02
(1)
• Bit 2:1 – UCSZ1:0: Character Size
The UCSZ1:0 bits combined with the UCSZ2 bit in UCSRB sets the number of data bits
(Character Size) in a frame the receiver and transmitter use.
Table 76. UCSZ Bits Settings
• Bit 0 – UCPOL: Clock Polarity
This bit is used for synchronous mode only. Write this bit to zero when asynchronous
mode is used. The UCPOL bit sets the relationship between data output change and
data input sample, and the synchronous clock (XCK).
Table 77. UCPOL Bit Settings
Note:
• Bit 15 – URSEL: Register Select
This bit selects between accessing the UBRRH or the UCSRC Register. It is read as
zero when reading UBRRH. The URSEL must be zero when writing the UBRRH.
• Bit 14:12 – Reserved Bits
These bits are reserved for future use. For compatibility with future devices, these bit
must be written to zero when UBRRH is written.
Bit
Read/Write
Initial Value
UCPOL
0
1
UCSZ2
1. The UBRRH Register shares the same I/O location as the UCSRC Register. See the
0
0
0
0
1
1
1
1
Transmitted Data Changed
(Output of TxD Pin)
Rising XCK Edge
Falling XCK Edge
“Accessing UBRRH/ UCSRC Registers” on page 181 section which describes how to
access this register.
URSEL
R/W
R/W
15
7
0
0
R/W
14
UCSZ1
R
–
6
0
0
0
0
1
1
0
0
1
1
R/W
13
R
–
5
0
0
R/W
12
R
–
4
0
0
UBRR[7:0]
UCSZ0
0
1
0
1
0
1
0
1
R/W
R/W
11
3
0
0
ATmega162(V/U/L)
Received Data Sampled
(Input on RxD Pin)
Falling XCK Edge
Rising XCK Edge
R/W
R/W
Character Size
5-bit
6-bit
7-bit
8-bit
Reserved
Reserved
Reserved
9-bit
10
2
0
0
UBRR[11:8]
R/W
R/W
9
1
0
0
R/W
R/W
8
0
0
0
UBRRH
UBRRL
187