ST10F269 datasheet(41/160 Pages) STMICROELECTRONICS

tên linh kiện	ST10F269

Giải thích chi tiết về linh kiện	16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM

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ST10F269

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The Table 5 shows the various combinations of pointer post-modification for each of these 2 new

addressing modes. In this document the symbols “[Rwn⊗]” and “[IDXi⊗]” refer to these addressing

modes.

Table 5 : Pointer Post-modification Combinations for IDXi and Rwn

Symbol

Mnemonic

Address Pointer Operation

“[IDXi⊗]” stands for

[IDXi]

(IDXi) ← (IDXi)

(no-op)

[IDXi+]

(IDXi) ← (IDXi) + 2

(i=0,1)

[IDXi-]

(IDXi) ← (IDXi) - 2

(i=0,1)

[IDXi + QXj]

(IDXi) ← (IDXi) + (QXj)

(i, j =0,1)

[IDXi - QXj]

(IDXi) ← (IDXi) - (QXj)

(i, j =0,1)

“[Rwn⊗]” stands for

[Rwn]

(Rwn)

← (Rwn)

(no-op)

[Rwn

(Rwn)

← (Rwn) + 2

(n=0-15)

[Rwn-]

(Rwn)

← (Rwn) - 2

(n=0-15)

[Rwn

+ QRj]

(Rwn)

← (Rwn) + (QRj)

(n=0-15; j =0,1)

[Rwn - QRj]

(Rwn)

← (Rwn) - (QRj)

(n=0-15; j =0,1)

Table 6 : MAC Registers Referenced as ‘CoReg‘

Registers

Description

Address in Opcode

MSW

MAC-Unit Status Word

00000b

MAH

MAC-Unit Accumulator High

00001b

MAS

“limited” MAH /signed

00010b

MAL

MAC-Unit Accumulator Low

00100b

MCW

MAC-Unit Control Word

00101b

MRW

MAC-Unit Repeat Word

00110b

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