參數(shù)資料
型號: UPD17149CTA1
廠商: NEC Corp.
英文描述: SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 小,通用4位單晶片微控制器
文件頁數(shù): 28/102頁
文件大?。?/td> 408K
代理商: UPD17149CTA1
28
μ
PD17145(A1), 17147(A1), 17149(A1)
10. ALU BLOCK
The ALU executes arithmetic and logical operations, bit judgment, and rotation processing of 4-bit data.
10.1 Configuration of ALU Block
Figure 10-1 shows the configuration of the ALU block.
As shown, the ALU block consists of an ALU that processes 4-bit data, and peripheral circuits such as
temporary registers A and B, status flip-flops that control the status of the ALU, and a decimal adjustment circuit
that is used when a BCD operation is performed.
The status flip-flops are a zero flag FF, carry flag FF, compare flag FF, and BCD flag FF, as shown in Figure
10-1.
The status flip-flops correspond to the zero flag (Z), carry flag (CY), compare flag (CMP), and BCD flag (BCD)
of the program status word (PSWORD: addresses 7EH, 7FH) on a one-to-one basis.
相關(guān)PDF資料
PDF描述
UPD17147CT SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD17147CTA1 SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD17149 SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD17149CT SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD17149GT 制造商:NEC 制造商全稱:NEC 功能描述:SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD17149GTA1 制造商:NEC 制造商全稱:NEC 功能描述:SMALL, GENERAL-PURPOSE 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD1714G 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC
UPD1715 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC
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