the 8051 microcontroller kenneth ayala and dhananjay gadre

Ngày tải lên: 04/10/2013, 19:10

... that the code for the CPU to move a value to register A is B0H and the code for adding a value to register A is 04H The action to be performed by the CPU is to put 21H into register A, and then ... computing needs of the task at hand efficiently and cost effectively ắ Speed ắ Packaging ắ Power consumption ắ The amount of RAM and ROM on chip ắ The number of I/O pins and the timer on chip ắ ... is put on the address bus and the code is fetched into the CPU, decoded, and executed  This code is again adding a value to register A  The program counter is updated to 1406H 6. ắ The contents...

Ngày tải lên: 20/01/2014, 03:20

Ngày tải lên: 19/10/2013, 14:15

Ngày tải lên: 23/10/2013, 12:15

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Ngày tải lên: 25/01/2014, 09:20

... you to leave them in circuit and not have to pull them out to erase them and then reprogram them. They also give a new dimension to products allowing them to be reprogrammed in the field. I should ... points to the start of the interrupt handler. After the interrupt handler code is finished (5 in Fig. 1.8), the hardware interrupt has been acknowledged and the hardware reset to request another interrupt ... processor then changes the program counter to the interrupt handler vector (3 in Fig. 1.8). The inter- rupt handler (4 in Fig. 1.8) is the subroutine-like code that processes the data from the inter- rupting...

Ngày tải lên: 20/02/2014, 17:20

Ngày tải lên: 01/06/2014, 12:31

... you to leave them in circuit and not have to pull them out to erase them and then reprogram them. They also give a new dimension to products allowing them to be reprogrammed in the field. I should ... in the text. These terms are often used in electronics and programming, although my use of them is specific to microcon- trollers and the PIC microcontroller. Application The hardware circuit and ... in a microcontroller is half the battle in understanding how they are used; along with changing the function of an I/O pin, they may also require other features (such as a timer or the microcontroller s...

Ngày tải lên: 12/08/2014, 23:21

... to use them. The two statement types that are required for an application are the PIC microcontroller instructions and the directives. The instructions are the application itself, and the end directive ... at the number of new developers I meet who do not understand the value of simulation; they often write their code, build the applications, program the PIC microcontrollers, plug them into the ... <I>PIC_MCU_P/N</I> is the PIC microcontroller part number. For example, the include file for the PIC16F84A is p16f84a.inc and the include file for the PIC12C508 is p12c508.inc. This is true for all the PIC microcontroller...

Ngày tải lên: 12/08/2014, 23:21

... element) within it is the Index. When specifying the array variable and element in the PIC microcontroller, the offset to the start of the array variable has to be added to the element number to get the register address ... pushed into the stack. The value pushed onto the stack is not the address of the call instruction but the address of the instruction after the call—which is the return address for the sub- routine. ... 0x0FF) and let the program counter roll over to 0 and start executing the application from there as if the reset vector were address 0 (like the other PIC microcontrollers). Ignoring the reset...

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 12/08/2014, 23:21

Ngày tải lên: 11/03/2015, 07:58

... with the Atmel AVR microcontroller line. The microcontrollers themselves are inexpensive, and the compilers and programming hardware and software are relatively inexpensive. Atmel AVR Microcontroller Primer: ... register and 0 when writing to the UBRRH register. UCSRA. This contains the RXC, TXC, and the UDRE bits. The function of these bits has already been discussed. UCSRB. This contains the receiver and ... bits (RXEN and TXEN, respectively). These bits are the ‘‘on/off’’ switch for the receiver and transmitter, respectively. The UCSRB register also contains the UCSZ2 bit. The UCSZ2 bit in the UCSRB...

Ngày tải lên: 16/08/2012, 09:03

... được gắng liền với hệ thống(chẳng hạn như các máy chủ kết nối sử dụng LAN hoặc WAN) đã phỏt trin theo cp s nhõn nhng nm gn õy ã Qun lý a nn(nh Windows NT đ, UNIX, Novell NetWare, VMS v phn mm ... thiết bị mà không phá vỡ tiến trình của ứng dụng Cỏc cụng ngh mi ã Giao thc iCSI ã FCoE ã Infiniband ã o húa ã Phn mm qun lý ngun lu tr ã S hi t ca SAN/NAS Li ớch ca SAN ã Ci thin kh nng ca ng ... những kiến trúc để đảm bảo rằng các yêu cầu của ứng dụng máy chủ được đáp ứng. SAN-đa lưu trữ theo từng cấp Truyn d liu trong SAN ã SAN ó to ra s thun tiện truyền dữ liệu tốc độ cao giữa máy...

Ngày tải lên: 17/09/2012, 10:43

... entrepreneurs, they served to represent the needs of political interest groups and above all the rulers of the continental states where they were based until the end of the eighteenth century and beyond. ... sympathy; and another summary report in the same issue talks disdainfully about the ‘vile populace’ and their hopes of pillage amidst the disorder. A survey of reports in four other gazettes shows the ... including one on the concept of Fatherland in the Netherlands from early modern times till World War II and one on Dutch lieux- de-m´emoire. Introduction  (as developed by Gutenberg in the mid-fifteenth...

Ngày tải lên: 21/09/2012, 10:58