stm8af6199 STMicroelectronics, stm8af6199 Datasheet - Page 12
stm8af6199
Manufacturer Part Number
stm8af6199
Description
Automotive 8-bit Mcu, With Up To 128 Kbytes Flash, Eeprom, 10-bit Adc, Timers, Lin, Can, Usart, Spi, I 2c, 3 V To 5.5 V
Manufacturer
STMicroelectronics
Datasheet
1.STM8AF6199.pdf
(100 pages)
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Product overview
5
5.1
5.1.1
5.1.2
5.1.3
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Product overview
The following section intends to give an overview of the basic features of the STM8A
functional modules and peripherals.
For more detailed information please refer to the STM8A microcontroller family reference
manual (RM0009).
Central processing unit STM8A
The 8-bit STM8A core is designed for code efficiency and performance.
It contains 21 internal registers (six directly addressable in each execution context), 20
addressing modes including indexed indirect and relative addressing and 80 instructions.
Architecture and registers
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Addressing
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Instruction set
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Harvard architecture
3-stage pipeline
32-bit wide program memory bus with single cycle fetching for most instructions
X and Y 16-bit index registers, enabling indexed addressing modes with or without
offset and read-modify-write type data manipulations
8-bit accumulator
24-bit program counter with 16-Mbyte linear memory space
16-bit stack pointer with access to a 64 Kbyte stack
8-bit condition code register with seven condition flags for the result of the last
instruction
20 addressing modes
Indexed indirect addressing mode for look-up tables located anywhere in the address
space
Stack pointer relative addressing mode for local variables and parameter passing
80 instructions with 2-byte average instruction size
Standard data movement and logic/arithmetic functions
8-bit by 8-bit multiplication
16-bit by 8-bit and 16-bit by 16-bit division
Bit manipulation
Data transfer between stack and accumulator (push/pop) with direct stack access
Data transfer using the X and Y registers or direct memory-to-memory transfers
STM8AF61xx, STM8AF51xx
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