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█ _ إم موريس مانو 0 حصريا مذكّرة 06 – Registers and Counters :M Morris Mano 2024 Mano: Counters BY Mano Chapter 6 ters Col 4 1 REClSf ERS A clccked sequential circuit consists of n group £lip flops combinational gates connected to form a feedback path The flip are essential because in their absence, the circuit reduces to purely (provided that there is no among the gates) A with considered even the absence of combinational Circuits include usually classified by function they perform rather than name Two such circuits registers and counters A register flops, each one which capable ssroring bit of information An storing bits of binary information In addition may have gates that certain data processing tasks its broadest definition, of a together affect operation hold the binary information, determine how transferred into the register counter essentially goes though preduermined sequence binary states corutectGd way as duce prescn'bed sequence of states Although special type register, it common differentiate them giving them different Various types registers avdable commercially simplest consists of only without any figure 6 shows amgister constructed four D flipflops four storage clock input triggers all flipflops on positive edge pulse, binary available at inputs الكتب التقنية والحاسوبية العامة مجاناً PDF اونلاين ركن خاص بكتب مجانيه للتحميل General ويوجد بيه مجموعة كتب مجالات الانترنت والبرامج المكتبية وتطبيقات ولغات البرمجة شرح لموضوعات تقنية باللغة العربية ومجموعة كبيرة من لغات خاصة ومجال الحاسوب بشكل عام

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06 – Registers and Counters  :M. Morris Mano
مذكّرة

06 – Registers and Counters :M. Morris Mano

ــ إم موريس مانو

06 – Registers and Counters  :M. Morris Mano
مذكّرة

06 – Registers and Counters :M. Morris Mano

ــ إم موريس مانو

عن مذكّرة 06 – Registers and Counters :M. Morris Mano:
06 – Registers and Counters
BY :M. Morris Mano

Chapter 6
ters and Col
4.1 REClSf ERS
A clccked sequential circuit consists of n group of £lip-flops and combinational gates connected
to form a feedback path. The flip-flops are essential because. in their absence, the
circuit reduces to a purely combinational circuit (provided that there is no feedback among
the gates). A circuit with flip-flops is considered a sequential circuit even in the absence of
combinational gates. Circuits that include flip-flops are usually classified by the function
they perform rather than by the name of the sequential circuit. Two such circuits are registers
and counters.
A register is a group of flip-flops, each one of which is capable of ssroring one bit of
information. An n-bit register consists of a group of n flip-flops capable of storing n bits of
binary information. In addition to the flip-flops, a register may have combinational gates
that perform certain data-processing tasks. In its broadest definition, a register consists of
a group of flip-flops together with gates that affect their operation. The flip-flops hold the
binary information, and the gates determine how the information is transferred into the
register.
A counter is essentially a register that goes though a preduermined sequence of binary
states. The gates in the counter are corutectGd in such a way as to duce the prescn'bed sequence
of states. Although counters are a special type of register, it is common to differentiate
them by giving them a different name.
Various types of registers are avdable commercially. The simplest register is one that consists
of only flip-flops, without any gates. figure 6.1 shows such amgister constructed with four
D-type flipflops to form a four-bit data storage register. The common clock input triggers all
flipflops on the positive edge of each pulse, and the binary data available at the four inputs are
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