ST10F280 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST10F280

16-BIT MCU WITH MAC UNIT, 512K BYTE FLASH MEMORY AND 18K BYTE RAM

STMicroelectronics 

ST10F280

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

ing 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) ← (IDXi) (no-op)

(IDXi) ← (IDXi) +2 (i=0,1)

“[Rwn⊗]” stands for

[IDXi]

[IDXi + QXj]

[IDXi QXj]

[Rwn]

[Rwn+]

[Rwn-]

[Rwn+QRj]

(IDXi) ← (IDXi)2 (i=0,1)

(IDXi) ← (IDXi) + (QXj) (i, j =0,1)

(IDXi) ← (IDXi) (QXj) (i, j =0,1)

(Rwn) ← (Rwn) (no-op)

(Rwn) ← (Rwn) +2 (n=0-15)

(Rwn) ← (Rwn)2 (k=0-15)

(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

MAH

MAS

MAL

MCW

MRW

MAC-Unit Status Word

MAC-Unit Accumulator High

“limited” MAH /signed

MAC-Unit Accumulator Low

MAC-Unit Control Word

MAC-Unit Repeat Word

00000b

00001b

00010b

00100b

00101b

00110b

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