STM8L152M8 datasheet(15/134 Pages) STMICROELECTRONICS

15 / 134 page

DocID17943 Rev 6

15/134

STM8L15xx8, STM8L15xR6

Functional overview

3.2

Central processing unit STM8

3.2.1

Advanced STM8 Core

The 8-bit STM8 core is designed for code efficiency and performance with an Harvard

architecture and a 3-stage pipeline.

It contains 6 internal registers which are directly addressable in each execution context, 20

addressing modes including indexed indirect and relative addressing, and 80 instructions.

Architecture and registers

•

Harvard architecture

•

3-stage pipeline

•

32-bit wide program memory bus - single cycle fetching 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 - 16 Mbyte linear memory space

•

16-bit stack pointer - access to a 64 Kbyte level stack

•

8-bit condition code register - 7 condition flags for the result of the last instruction

Addressing

•

20 addressing modes

•

Indexed indirect addressing mode for lookup tables located anywhere in the address

space

•

Stack pointer relative addressing mode for local variables and parameter passing

Instruction set

•

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

3.2.2

Interrupt controller

The high density and medium+ density STM8L15xxdevices feature a nested vectored

interrupt controller:

•

Nested interrupts with 3 software priority levels

•

32 interrupt vectors with hardware priority

•

Up to 40 external interrupt sources on 11 vectors

•

Trap and reset interrupts

STM8L152M8 데이터시트(PDF) 15 Page - STMicroelectronics

STM8L152M8 데이터시트(HTML) 15 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL