参数资料
型号: ATTINY13V-10SUR
厂商: Atmel
文件页数: 114/176页
文件大小: 0K
描述: MCU AVR 1KB FLASH 10MHZ 8SOIC
产品培训模块: tinyAVR Introduction
标准包装: 2,000
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 10MHz
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 6
程序存储器容量: 1KB(512 x 16)
程序存储器类型: 闪存
EEPROM 大小: 64 x 8
RAM 容量: 64 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.209",5.30mm 宽)
包装: 带卷 (TR)
其它名称: ATTINY13V-10SUR-ND
ATTINY13V-10SURTR
42
2535J–AVR–08/10
ATtiny13
This is useful for keeping the Watchdog Timer security while using the interrupt. To stay in Inter-
rupt and System Reset Mode, WDTIE must be set after each interrupt. This should however not
be done within the interrupt service routine itself, as this might compromise the safety-function of
the Watchdog System Reset mode. If the interrupt is not executed before the next time-out, a
System Reset will be applied.
Note:
1. WDTON fuse set to “0“ means programmed and “1“ means unprogrammed.
Bit 4 - WDCE: Watchdog Change Enable
This bit is used in timed sequences for changing WDE and prescaler bits. To clear the WDE bit,
and/or change the prescaler bits, WDCE must be set.
Once written to one, hardware will clear WDCE after four clock cycles.
Bit 3 - WDE: Watchdog System Reset Enable
WDE is overridden by WDRF in MCUSR. This means that WDE is always set when WDRF is
set. To clear WDE, WDRF must be cleared first. This feature ensures multiple resets during con-
ditions causing failure, and a safe start-up after the failure.
Bit 5, 2:0 - WDP[3:0]: Watchdog Timer Prescaler 3, 2, 1 and 0
The WDP[3:0] bits determine the Watchdog Timer prescaling when the Watchdog Timer is run-
ning. The different prescaling values and their corresponding time-out periods are shown in
Table 8-1.
Watchdog Timer Configuration
WDTON(1)
WDE
WDTIE
Mode
Action on Time-out
1
0
Stopped
None
1
0
1
Interrupt Mode
Interrupt
1
0
System Reset Mode
Reset
11
1
Interrupt and System Reset
Mode
Interrupt, then go to System
Reset Mode
0
x
System Reset Mode
Reset
Table 8-2.
Watchdog Timer Prescale Select
WDP3
WDP2
WDP1
WDP0
Number of WDT Oscillator
Cycles
Typical Time-out at
VCC = 5.0V
0000
2K (2048) cycles
16 ms
0001
4K (4096) cycles
32 ms
0010
8K (8192) cycles
64 ms
0011
16K (16384) cycles
0.125 s
0100
32K (32768) cycles
0.25 s
0101
64K (65536) cycles
0.5 s
0110
128K (131072) cycles
1.0 s
0111
256K (262144) cycles
2.0 s
1000
512K (524288) cycles
4.0 s
1001
1024K (1048576) cycles
8.0 s
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