ATMEGA1284PR231-AU Atmel, ATMEGA1284PR231-AU Datasheet - Page 55
ATMEGA1284PR231-AU
Manufacturer Part Number
ATMEGA1284PR231-AU
Description
BUNDLE ATMEGA1284P/RF231 TQFP
Manufacturer
Atmel
Datasheet
1.ATMEGA1284PR231-AU.pdf
(380 pages)
Specifications of ATMEGA1284PR231-AU
Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, RF4CE, SP100, WirelessHART™, ISM
Data Interface
PCB, Surface Mount
Memory Size
128kB Flash, 4kB EEPROM, 16kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
44-TQFP, 44-VQFP
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
16 KB
Development Tools By Supplier
ATAVRRZ541, ATAVRRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Power - Output
-
Operating Temperature
-
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Details
- Current page: 55 of 380
- Download datasheet (7Mb)
8059D–AVR–11/09
Note: If the Watchdog is accidentally enabled, for example by a runaway pointer or brown-out
condition, the device will be reset and the Watchdog Timer will stay enabled. If the code is not
set up to handle the Watchdog, this might lead to an eternal loop of time-out resets. To avoid this
situation, the application software should always clear the Watchdog System Reset Flag
(WDRF) and the WDE control bit in the initialisation routine, even if the Watchdog is not in use.
The following code example shows one assembly and one C function for changing the time-out
value of the Watchdog Timer.
Note:
Note: The Watchdog Timer should be reset before any change of the WDP bits, since a change
in the WDP bits can result in a time-out when switching to a shorter time-out period.
Assembly Code Example
C Code Example
WDT_Prescaler_Change:
void WDT_Prescaler_Change(void)
{
}
; Turn off global interrupt
cli
; Reset Watchdog Timer
wdr
; Start timed sequence
in
ori
out
; --
; Set new prescaler(time-out) value = 64K cycles (~0.5 s)
ldi
out
; --
; Turn on global interrupt
sei
ret
__disable_interrupt();
__watchdog_reset();
/* Start timed
WDTCSR |= (1<<WDCE) | (1<<WDE);
/* Set new prescaler(time-out) value = 64K cycles (~0.5 s) */
WDTCSR
__enable_interrupt();
1. The example code assumes that the part specific header file is included.
r16, WDTCSR
r16, (1<<WDCE) | (1<<WDE)
WDTCSR, r16
Got four cycles to set the new values from here -
r16, (1<<WDE) | (1<<WDP2) | (1<<WDP0)
WDTCSR, r16
Finished setting new values, used 2 cycles -
= (1<<WDE) | (1<<WDP2) | (1<<WDP0);
(1)
(1)
equence */
ATmega1284P
55
Related parts for ATMEGA1284PR231-AU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Development Boards & Kits - AVR MEGA-1284P Xplained Evaluation kit
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128K ISP FLASH 44-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128K ISP FLASH 40-PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128KB FLASH 20MHZ 44VQFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128KB FLASH 20MHZ 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128K ISP FLASH 44-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC MCU AVR 128K FLASH 44QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 128K FLASH 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 128K FLASH 40PDIP
Manufacturer:
Atmel
Datasheet: