ATMEGA64RZAV-10PU Atmel, ATMEGA64RZAV-10PU Datasheet - Page 174
ATMEGA64RZAV-10PU
Manufacturer Part Number
ATMEGA64RZAV-10PU
Description
MCU ATMEGA644/AT86RF230 40-DIP
Manufacturer
Atmel
Series
ATMEGAr
Datasheets
1.ATMEGA644-20MU.pdf
(23 pages)
2.ATMEGA644-20MU.pdf
(376 pages)
3.AT86RF230-ZU.pdf
(98 pages)
Specifications of ATMEGA64RZAV-10PU
Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee
Power - Output
3dBm
Sensitivity
-101dBm
Voltage - Supply
1.8 V ~ 3.6 V
Data Interface
PCB, Surface Mount
Memory Size
64kB Flash, 2kB EEPROM, 4kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
40-DIP (0.600", 15.24mm)
Wireless Frequency
2.4 GHz
Interface Type
JTAG, SPI
Output Power
3 dBm
For Use With
ATSTK600-TQFP32 - STK600 SOCKET/ADAPTER 32-TQFPATAVRISP2 - PROGRAMMER AVR IN SYSTEMATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Operating Temperature
-
Applications
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
ATmega64
- Current page: 174 of 376
- Download datasheet (8Mb)
17.7.2
174
ATmega644
Receiving Frames with 9 Data Bits
bits of the data read from the UDRn will be masked to zero. The USART has to be initialized
before the function can be used.
Note:
The function simply waits for data to be present in the receive buffer by checking the RXCn Flag,
before reading the buffer and returning the value.
If 9-bit characters are used (UCSZn=7) the ninth bit must be read from the RXB8n bit in
UCSRnB before reading the low bits from the UDRn. This rule applies to the FEn, DORn and
UPEn Status Flags as well. Read status from UCSRnA, then data from UDRn. Reading the
UDRn I/O location will change the state of the receive buffer FIFO and consequently the TXB8n,
FEn, DORn and UPEn bits, which all are stored in the FIFO, will change.
The following code example shows a simple USART receive function that handles both nine bit
characters and the status bits.
Assembly Code Example
C Code Example
USART_Receive:
unsigned char USART_Receive( void )
{
}
; Wait for data to be received
sbis UCSRnA, RXCn
rjmp USART_Receive
; Get and return received data from buffer
in
ret
/* Wait for data to be received */
while ( !(UCSRnA & (1<<RXCn)) )
/* Get and return received data from buffer */
return UDRn;
1. See “About Code Examples” on page 8.
r16, UDRn
;
(1)
(1)
2593N–AVR–07/10
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