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参数资料
| 型号： | ST7FL05Y0MAE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16 |
| 封装： | 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-16 |
| 文件页数： | 18/104页 |
| 文件大小： | 2151K |
| 代理商： | ST7FL05Y0MAE |
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Obsolete
Product(s)
- Obsolete
Product(s)
ST7L05, ST7L09
20/104
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 six CPU registers shown in Figure 9 are not
present in the memory mapping and are accessed
by specific instructions.
Accumulator (A)
The Accumulator is an 8-bit general purpose reg-
ister used to hold operands and the results of the
arithmetic and logic calculations and to manipulate
data.
Index Registers (X and Y)
In indexed addressing modes, these 8-bit registers
are used to create either effective addresses or
temporary storage areas for data manipulation.
(The Cross-Assembler generates a precede in-
struction (PRE) to indicate that the following in-
struction refers to the Y register.)
The Y register is not affected by the interrupt auto-
matic procedures (not pushed to and popped from
the stack).
Program Counter (PC)
The program counter is a 16-bit register containing
the address of the next instruction to be executed
by the CPU. It is made of two 8-bit registers PCL
(Program Counter Low which is the LSB) and PCH
(Program Counter High which is the MSB).
Figure 9. 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
0
7
15
8
PCH
PCL
15
8
70
RESET VALUE = STACK HIGHER ADDRESS
RESET VALUE = 1X
1 1 X1 XX
RESET VALUE = XXh
X = Undefined Value
1
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相关代理商/技术参数 |
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|---|---|
| ST7FL05Y0MATRE | 制造商:STMicroelectronics 功能描述:SOCKET BOARD LITE - Tape and Reel |
| ST7FL05Y0MB | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
| ST7FL05Y0MBE | 制造商:STMicroelectronics 功能描述: |
| ST7FL05YMAE | 制造商:STMicroelectronics 功能描述:MCU 8BIT ST7 CISC 1.5KB FLASH 3.3V/5V 16SOIC - Rail/Tube |
| ST7FL09Y0MA | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash memory, data EEPROM, ADC, timers, SPI |
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