ATmega162 Atmel Corporation, ATmega162 Datasheet - Page 189

• Manufacturer Part Number: ATmega162
• Manufacturer: Atmel Corporation

Specifications of ATmega162

• Flash (kbytes): 16 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 35
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 6
• Input Capture Channels: 2
• Pwm Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

USART Control and
Status Register C –
UCSRC
2513K–AVR–07/09
(1)
Note:
• Bit 7 – URSEL: Register Select
This bit selects between accessing the UCSRC or the UBRRH Register. It is read as one when
reading UCSRC. The URSEL must be one when writing the UCSRC.
• Bit 6 – UMSEL: USART Mode Select
This bit selects between asynchronous and synchronous mode of operation.
Table 73. UMSEL Bit Settings
• Bit 5:4 – UPM1:0: Parity Mode
These bits enable and set type of parity generation and check. If enabled, the transmitter will
automatically generate and send the parity of the transmitted data bits within each frame. The
receiver will generate a parity value for the incoming data and compare it to the UPM0 setting. If
a mismatch is detected, the UPE Flag in UCSRA will be set.
Table 74. UPM Bits Settings
• Bit 3 – USBS: Stop Bit Select
This bit selects the number of stop bits to be inserted by the transmitter. The receiver ignores
this setting.
Table 75. USBS Bit Settings
Bit
Read/Write
Initial Value
UPM1
1. The UCSRC Register shares the same I/O location as the UBRRH Register. See the
UMSEL
0
0
1
1
ing UBRRH/ UCSRC Registers” on page 184
register.
0
1
URSEL
USBS
R/W
7
1
0
1
UMSEL
R/W
6
0
UPM0
Mode
Asynchronous Operation
Synchronous Operation
0
1
0
1
UPM1
R/W
5
0
UPM0
R/W
Parity Mode
Disabled
Reserved
Enabled, Even Parity
Enabled, Odd Parity
4
0
USBS
R/W
3
0
UCSZ1
section which describes how to access this
Stop Bit(s)
R/W
2
1
1-bit
2-bit
UCSZ0
R/W
1
1
ATmega162/V
UCPOL
R/W
0
0
UCSRC
“Access-
189