參數(shù)資料
型號: AV80C52TXXX-20:D
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
封裝: 1.40 MM HEIGHT, VQFP-44
文件頁數(shù): 20/134頁
文件大?。?/td> 3805K
116
8011Q–AVR–02/2013
ATmega164P/324P/644P
The following code examples show how to do an atomic write of the TCNTn Register contents.
Writing any of the OCRnA/B/C or ICRn Registers can be done by using the same principle.
Note:
1. The example code assumes that the part specific header file is included.
For I/O Registers located in extended I/O map, “IN”, “OUT”, “SBIS”, “SBIC”, “CBI”, and “SBI”
instructions must be replaced with instructions that allow access to extended I/O. Typically
“LDS” and “STS” combined with “SBRS”, “SBRC”, “SBR”, and “CBR”.
The assembly code example requires that the r17:r16 register pair contains the value to be writ-
ten to TCNTn.
13.3.1
Reusing the Temporary High Byte Register
If writing to more than one 16-bit register where the high byte is the same for all registers written,
then the high byte only needs to be written once. However, note that the same rule of atomic
operation described previously also applies in this case.
13.4
Timer/Counter Clock Sources
The Timer/Counter can be clocked by an internal or an external clock source. The clock source
is selected by the Clock Select logic which is controlled by the Clock Select (CSn2:0) bits
located in the Timer/Counter control Register B (TCCRnB). For details on clock sources and
Assembly Code Example
TIM16_WriteTCNT
n:
; Save global interrupt flag
in
r18,SREG
; Disable interrupts
cli
; Set TCNT
n to r17:r16
out
TCNT
nH,r17
out
TCNT
nL,r16
; Restore global interrupt flag
out
SREG,r18
ret
C Code Example
void
TIM16_WriteTCNT
n( unsigned int i )
{
unsigned char
sreg;
unsigned int
i;
/* Save global interrupt flag */
sreg = SREG;
/* Disable interrupts */
_CLI();
/* Set TCNT
n to i */
TCNT
n = i;
/* Restore global interrupt flag */
SREG = sreg;
}
相關(guān)PDF資料
PDF描述
AT89C5131-TISIM 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PDSO28
AT89C51ED2-SLUIM 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
ATTINY13V-12SI 8-BIT, FLASH, 12 MHz, RISC MICROCONTROLLER, PDSO8
ATAR892X-YYY-TKSI 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
AT75C221-CC-001 40 MHz, RISC PROCESSOR, PBGA256
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AV810 功能描述:HOME THEATER PREMIUM SURGE 8 OUT 制造商:tripp lite 系列:- 零件狀態(tài):有效 類型:Outlet Strip,Surge Protector 安裝類型:工作臺,地面,墻壁 電流 - 最大值:15A 使用地區(qū):適用于北美地區(qū) 過載保護(hù):斷路器 連接器 - AC 輸入:NEMA 5-15R 連接器 - AC 輸出:NEMA 5-15R 電壓 - 輸入:120V 外殼材料:塑料 受保護(hù)的介質(zhì)線路:F 型同軸,RJ11 AC 插座:8 能量:3240J 電線長度:10'(3.05m) 認(rèn)可:FCC,IC,UL 特性:- 重量:* 標(biāo)準(zhǔn)包裝:6
AV8100EVAL01 制造商:ST Ericsson 功能描述:DSI TO HDMI EVALUATION BOARD. USB CONTROLLED - Bulk 制造商:ST-Ericsson 功能描述:DSI TO HDMI EVALUATION BOARD. USB CONTROLLED - Bulk
AV8100F)R 功能描述:IC TRANSMITTER HDMI ANLG 56VFBGA 制造商:st-ericsson inc 系列:- 包裝:托盤 零件狀態(tài):停產(chǎn) 類型:HDMI 發(fā)射器 應(yīng)用:便攜式設(shè)備 安裝類型:表面貼裝 封裝/外殼:56-VFBGA 供應(yīng)商器件封裝:56-VFBGA 標(biāo)準(zhǔn)包裝:4,860
AV8100F)RT 功能描述:IC TRANSMITTER HDMI ANLG 56VFBGA 制造商:st-ericsson inc 系列:- 包裝:帶卷(TR) 零件狀態(tài):停產(chǎn) 類型:HDMI 發(fā)射器 應(yīng)用:便攜式設(shè)備 安裝類型:表面貼裝 封裝/外殼:56-VFBGA 供應(yīng)商器件封裝:56-VFBGA 標(biāo)準(zhǔn)包裝:2,500
AV83C151C-12 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller