參數(shù)資料
型號: ATTINY2313A-MUR
廠商: Atmel
文件頁數(shù): 156/172頁
文件大小: 0K
描述: MCU AVR 2K FLASH 20MHZ 20QFN
產(chǎn)品培訓(xùn)模塊: tinyAVR Introduction
標準包裝: 6,000
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 18
程序存儲器容量: 2KB(1K x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 128 x 8
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-WFQFN 裸露焊盤
包裝: 帶卷 (TR)
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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