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ST7FLITE25F2M6 bảng dữ liệu(PDF) 29 Page - STMicroelectronics

tên linh kiện ST7FLITE25F2M6
Giải thích chi tiết về linh kiện  8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, Timers, SPI
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST7FLITE25F2M6 bảng dữ liệu(HTML) 29 Page - STMicroelectronics

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Central processing unit
Doc ID 8349 Rev 5
29/166
6
Central processing unit
6.1
Introduction
This CPU has a full 8-bit architecture and contains six internal registers allowing efficient
8-bit data manipulation.
6.2
Main features
●
63 basic instructions
●
Fast 8-bit by 8-bit multiply
●
17 main addressing modes
●
Two 8-bit index registers
●
16-bit stack pointer
●
Low power modes
●
Maskable hardware interrupts
●
Non-maskable software interrupt
6.3
CPU registers
The 6 CPU registers shown in Figure 10 are not present in the memory mapping and are
accessed by specific instructions.
Figure 10. CPU registers
Accumulator
X index register
Y index register
Stack pointer
Condition code register
Program counter
70
1C
11H I
N Z
Reset value = reset vector @ FFFEh-FFFFh
70
70
70
0
7
15
8
PCH
PCL
15
8
70
Reset value = stack higher address
Reset value =
1X
11X 1X X
Reset value = XXh
Reset value = XXh
Reset value = XXh
X = Undefined value



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