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參數(shù)資料
| 型號： | TS80C52X2ZZZ-LIE |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | VQFP-44 |
| 文件頁數(shù)： | 13/46頁 |
| 文件大?。?/td> | 7004K |
| 代理商： | TS80C52X2ZZZ-LIE |
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145
7593L–AVR–09/12
AT90USB64/128
16. 8-bit Timer/Counter2 with PWM and asynchronous operation
Timer/Counter2 is a general purpose, single channel, 8-bit Timer/Counter module. The main
features are:
Single channel counter
Clear timer on compare match (auto reload)
Glitch-free, phase correct pulse width modulator (PWM)
Frequency generator
10-bit clock prescaler
Overflow and compare match interrupt sources (TOV2, OCF2A and OCF2B)
Allows clocking from external 32kHz watch crystal independent of the I/O clock
16.1
Overview
A simplified block diagram of the 8-bit Timer/Counter is shown in Figure 16-1. For the actual
placement of I/O pins, see “Pin configurations” on page 3. CPU accessible I/O Registers, includ-
ing I/O bits and I/O pins, are shown in bold. The device-specific I/O Register and bit locations
are listed in the “8-bit Timer/Counter register description” on page 156.
The Power Reduction Timer/Counter2 bit, PRTIM2, in “PRR0 – Power Reduction Register 0” on
page 54 must be written to zero to enable Timer/Counter2 module.
Figure 16-1. 8-bit Timer/Counter, block diagram.
Timer/counter
D
ATA
B
U
S
OCRnA
OCRnB
=
TCNTn
Waveform
generation
Waveform
generation
OCnA
OCnB
=
Fixed
TOP
value
Control logic
= 0
TOP
BOTTOM
Count
Clear
Direction
TOVn
(int.req.)
OCnA
(int.req.)
OCnB
(int.req.)
TCCRnA
TCCRnB
clk
Tn
ASSRn
Synchronization unit
Prescaler
T/C
oscillator
clk
I/O
clk
ASY
asynchronous mode
select (ASn)
Synchronized status flags
TOSC1
TOSC2
Status flags
clk
I/O
相關PDF資料 |
PDF描述 |
|---|---|
| TS87C52X2-MIE | 8-BIT, OTPROM, 40 MHz, MICROCONTROLLER, PQFP44 |
| TS80C58X2XXX-VIA | 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PDIP40 |
| TSC80C51CXXX-36CW | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, UUC40 |
| TSC80C51TXXX-25IW | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, UUC40 |
| TSC80C51TXXX-36IXD | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, UUC40 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TS80C52X2ZZZ-MCA | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller 8 Kbytes ROM/OTP, ROMless |
| TS80C52X2ZZZ-MCB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller 8 Kbytes ROM/OTP, ROMless |
| TS80C52X2ZZZ-MCC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller 8 Kbytes ROM/OTP, ROMless |
| TS80C52X2ZZZ-MCE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller 8 Kbytes ROM/OTP, ROMless |
| TS80C52X2ZZZ-MIA | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller 8 Kbytes ROM/OTP, ROMless |
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