參數(shù)資料
型號: AT90S8515A-8PC
廠商: Atmel
文件頁數(shù): 49/112頁
文件大?。?/td> 0K
描述: IC MCU 8K FLSH 8MHZ 40DIP
標準包裝: 18
系列: AVR® 90S
核心處理器: AVR
芯體尺寸: 8-位
速度: 8MHz
連通性: SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 8KB(4K x 16)
程序存儲器類型: 閃存
EEPROM 大小: 512 x 8
RAM 容量: 512 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 管件
41
AT90S8515
0841G–09/01
Figure 32. Effects on Unsynchronized OCR1 Latching
During the time between the write and the latch operation, a read from OCR1A or
OCR1B will read the contents of the temporary location. This means that the most
recently written value always will read out of OCR1A/B.
When the OCR1 contains $0000 or TOP, the output OC1A/OC1B is updated to low or
high on the next compare match according to the settings of COM1A1/COM1A0 or
COM1B1/COM1B0. This is shown in Table 13.
Note:
If the compare register contains TOP value and the prescaler is not in use (CS12..CS10
= 001), the PWM output will not produce any pulse at all, because up-counting and
down-counting values are reached simultaneously. When the prescaler is in use
(CS12..CS10
≠ 001 or 000), the PWM output goes active when the counter reaches the
TOP value; but the down-counting compare match is not interpreted to be reached
before the next time the counter reaches the TOP value, making a one-period PWM
pulse.
Note:
X = A or B
In PWM mode, the Timer Overflow Flag1 (TOV1) is set when the counter advances from
$0000. Timer Overflow Interrupt1 operates exactly as in normal Timer/Counter mode,
i.e., it is executed when TOV1 is set, provided that Timer Overflow Interrupt1 and global
interrupts are enabled. This also applies to the Timer Output Compare1 flags and
interrupts.
Table 13. PWM Outputs OCR1X = $0000 or TOP
COM1X1
COM1X0
OCR1X
Output OC1X
1
0
$0000
L
10
TOP
H
1
$0000
H
11
TOP
L
Counter Value
Compare Value
PWM Output OC1X
Synchronized
OCR1X Latch
Counter Value
Compare Value
PWM Output OC1X
Unsynchronized
OCR1X Latch
Glitch
Compare Value changes
Note: X = A or B
Compare Value changes
相關(guān)PDF資料
PDF描述
AT90S8535-8PI IC MCU 8K FLSH 8MHZ A/D IT 40DIP
AT90USB1287-16AUR IC MCU AVR 128K ISP USB TQFP64
AT90USB162-16AUR IC AVR MCU 16K FLASH 32TQFP
AT91FR40162SB-CU-999 IC MCU 32BIT RISC 121BGA
AT91M40800-33AI SL383 IC ARM MCU 16BIT 100TQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT90S8515A-8PI 功能描述:IC MCU 8BIT 8KB FLASH 40DIP 制造商:microchip technology 系列:AVR? 90S 包裝:管件 零件狀態(tài):停產(chǎn) 核心處理器:AVR 核心尺寸:8-位 速度:8MHz 連接性:SPI,UART/USART 外設(shè):欠壓檢測/復位,POR,PWM,WDT I/O 數(shù):32 程序存儲容量:8KB(4K x 16) 程序存儲器類型:閃存 EEPROM 容量:512 x 8 RAM 容量:512 x 8 電壓 - 電源(Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:40-DIP(0.600",15.24mm) 供應商器件封裝:40-PDIP 基本零件編號:AT90S8515 標準包裝:18
AT90S8515-JC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
AT90S8515-JI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
AT90S8515-PC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
AT90S8515-PI 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller