參數(shù)資料
型號: HD40A46612
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
中文描述: 低電壓如同在微機芯片的DTMF產生電路(帶雙音多頻電路的低電壓微計算機)
文件頁數(shù): 18/142頁
文件大?。?/td> 894K
代理商: HD40A46612
HD404669 Series
18
Functional Description
Registers and Flags
The MCU has nine registers and two flags for CPU operations. They are shown in figure 8 and described
below.
3
0
3
0
3
0
3
0
3
0
3
0
0
0
0
13
9
5
1
(B)
(A)
(W)
(X)
(Y)
(SPX)
(SPY)
(CA)
(ST)
(PC)
(SP)
1
1
1
1
Accumulator
B register
W register
X register
Y register
SPX register
SPY register
Carry
Status
Program counter
Initial value: $0000,
R/W not possible
Stack pointer
Initial value: $3FF, R/W not possible
0
0
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: Undefined, R/W
Initial value: 1, R/W not possible
Figure 8 Registers and Flags
Accumulator (A) and B Register (B):
A and B are 4-bit registers, and are used to hold the results of ALU
(arithmetic and logical unit) operations and to transfer data between memory, I/O ports, and other registers.
相關PDF資料
PDF描述
HD40A4668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD40A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD404668 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD404669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
HD407A4669 Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計算機)
相關代理商/技術參數(shù)
參數(shù)描述
HD40A46612H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4668 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4668H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4669 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4669H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit