- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄352476 > A42MX16-1CQ100M (Electronic Theatre Controls, Inc.) IC I2C PROG PENTA ULDO 20-MLP PDF資料下載
參數(shù)資料
| 型號(hào)： | A42MX16-1CQ100M |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | IC I2C PROG PENTA ULDO 20-MLP |
| 中文描述： | 40MX和42MX FPGA系列 |
| 文件頁數(shù)： | 90/120頁 |
| 文件大?。?/td> | 854K |
| 代理商： | A42MX16-1CQ100M |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁當(dāng)前第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁
71
4958B–AUTO–11/10
Atmel ATA6285/ATA6286 [Preliminary]
It is important to notice that accessing 16-bit registers are atomic operations. If an interrupt
occurs between the two instructions accessing the 16-bit register, and the interrupt code
updates the temporary register by accessing the same or any other of the 16-bit Timer Regis-
ters, then the result of the access outside the interrupt will be corrupted. Therefore, when both
the main code and the interrupt code update the temporary register, the main code must disable
the interrupts during the 16-bit access.
The following code examples show how to do an atomic read of the T2COR Register contents.
Reading any of the 16-bit 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 returns the T2COR value in the r17:r16 register pair.
Assembly Code Example(1)
TIM16_ReadT2COR:
; Save global interrupt flag
In r18, SREG
; Disable interrupts
cli
; Read T2COR into r17:r16
LDS r16,T2CORL
LDS r17,T2CORH
; Restore global interrupt flag
Out SREG, r18
ret
C Code Example(1)
unsigned int TIM16_ReadT2COR( void )
{
unsigned char sreg;
unsigned int i;
/* Save global interrupt flag */
sreg = SREG;
/* Disable interrupts */
_CLI();
/* Read T2COR into i */
i = T2COR;
/* Restore global interrupt flag */
SREG = sreg;
return i;
}
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A42MX16-1PL100 | 40MX and 42MX FPGA Families |
| A42MX16-1PL100A | IC TVS BI-DIR 5V 350W SOD-323 |
| A42MX16-1PL100B | 40MX and 42MX FPGA Families |
| A42MX16-1PL100ES | 40MX and 42MX FPGA Families |
| A42MX16-1PL100I | 40MX and 42MX FPGA Families |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A42MX16-1PL100 | 制造商:ACTEL 制造商全稱:Actel Corporation 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1PL100A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1PL100B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1PL100ES | 制造商:ACTEL 制造商全稱:Actel Corporation 功能描述:40MX and 42MX FPGA Families |
| A42MX16-1PL100I | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:40MX and 42MX FPGA Families |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。