參數(shù)資料
型號： AT90S8515A-8PC
廠商： Atmel
文件頁數(shù)： 45/112頁
文件大小： 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(fù)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?。?/td> 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
38
AT90S8515
0841G–09/01
The Stop condition provides a Timer Enable/Disable function. The CK down divided
modes are scaled directly from the CK oscillator clock. If the external pin modes are
used for Timer/Counter1, transitions on PB1/(T1) will clock the counter even if the pin is
configured as an output. This feature can give the user software control of the counting.
Timer/Counter1 – TCNT1H
AND TCNT1L
This 16-bit register contains the prescaled value of the 16-bit Timer/Counter1. To
ensure that both the high and low bytes are read and written simultaneously when the
C P U accesses t hese r e gister s, the access is per f o r m ed u s ing an 8- bit
temporary register (TEMP). This temporary register is also used when accessing
OCR1A, OCR1B and ICR1. If the main program and interrupt routines perform access
to registers using TEMP, interrupts must be disabled during access from the main pro-
gram (and from interrupt routines if interrupts are allowed from within interrupt routines).
TCNT1 Timer/Counter1 Write:
When the CPU writes to the high byte TCNT1H, the written data is placed in the
TEMP register. Next, when the CPU writes the low byte TCNT1L, this byte of data is
combined with the byte data in the TEMP register, and all 16 bits are written to the
TCNT1 Timer/Counter1 register simultaneously. Consequently, the high byte
TCNT1H must be accessed first for a full 16-bit register write operation.
TCNT1 Timer/Counter1 Read:
When the CPU reads the low byte TCNT1L, the data of the low byte TCNT1L is sent
to the CPU and the data of the high byte TCNT1H is placed in the TEMP register.
When the CPU reads the data in the high byte TCNT1H, the CPU receives the data
in the TEMP register. Consequently, the low byte TCNT1L must be accessed first for
a full 16-bit register read operation.
The Timer/Counter1 is realized as an up or up/down (in PWM mode) counter with read
and write access. If Timer/Counter1 is written to and a clock source is selected, the
Timer/Counter1 continues counting in the timer clock cycle after it is preset with the writ-
ten value.
Timer/Counter1 Output
Compare Register – OCR1AH
AND OCR1AL
Bit
151413
12
1110
9
8
$2D ($4D)
MSB
TCNT1H
$2C ($4C)
LSB
TCNT1L
765
4321
0
Read/Write
R/W
Initial Value
000
0000
0
000
0000
0
Bit
151413
12
1110
9
8
$2B ($4B)
MSB
OCR1AH
$2A ($4A)
LSB
OCR1AL
765
4321
0
Read/Write
R/W
Initial Value
000
0000
0
000
0000
0
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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(fù)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(yīng)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
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