参数资料
型号: ATTINY2313A-SUR
厂商: Atmel
文件页数: 156/172页
文件大小: 0K
描述: MCU AVR 2KB FLASH 20MHZ 20SOIC
产品培训模块: tinyAVR Introduction
标准包装: 1,000
系列: AVR® ATtiny
核心处理器: AVR
芯体尺寸: 8-位
速度: 20MHz
连通性: I²C,SPI,UART/USART
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 18
程序存储器容量: 2KB(1K x 16)
程序存储器类型: 闪存
EEPROM 大小: 128 x 8
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
其它名称: ATTINY2313A-SUR-ND
84
8246B–AVR–09/11
ATtiny2313A/4313
Table 11-7 shows the COM0B1:0 bit functionality when the WGM02:0 bits are set to phase cor-
rect PWM mode.
Note:
1. A special case occurs when OCR0B equals TOP and COM0B1 is set. In this case, the Com-
pare Match is ignored, but the set or clear is done at TOP. See “Phase Correct PWM Mode” on
page 79 for more details.
Bits 3, 2 – Res: Reserved Bits
These bits are reserved bits in the ATtiny2313A/4313 and will always read as zero.
Bits 1:0 – WGM01:0: Waveform Generation Mode
Combined with the WGM02 bit found in the TCCR0B Register, these bits control the counting
sequence of the counter, the source for maximum (TOP) counter value, and what type of wave-
form generation to be used, see Table 11-8. Modes of operation supported by the Timer/Counter
unit are: Normal mode (counter), Clear Timer on Compare Match (CTC) mode, and two types of
Pulse Width Modulation (PWM) modes (see “Modes of Operation” on page 76).
Notes:
1. MAX
= 0xFF
2. BOTTOM = 0x00
Table 11-7.
Compare Output Mode, Phase Correct PWM Mode(1)
COM0B1
COM0B0
Description
0
Normal port operation, OCR0B disconnected.
01
Reserved
10
Clear ORC0B on Compare Match when up-counting. Set OCR0B
on Compare Match when down-counting.
11
Set OCR0B on Compare Match when up-counting. Clear OCR0B
on Compare Match when down-counting.
Table 11-8.
Waveform Generation Mode Bit Description
Mode
WGM2
WGM1
WGM0
Timer/Count
er Mode of
Operation
TOP
Update of
OCRx at
TOV Flag
Set on
0
Normal
0xFF
Immediate
MAX
10
0
1
PWM, Phase
Correct
0xFF
TOP
BOTTOM
2
0
1
0
CTC
OCR0A
Immediate
MAX
3
0
1
Fast PWM
0xFF
TOP
MAX
41
0
Reserved
51
0
1
PWM, Phase
Correct
OCR0A
TOP
BOTTOM
61
1
0
Reserved
7
1
Fast PWM
OCR0A
TOP
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