TMS320F241FN datasheet(67/116 Pages) TI

67 / 116 page

TMS320F243, TMS320F241

DSP CONTROLLERS

SPRS064B – DECEMBER 1997 – REVISED FEBRUARY 1999

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251–1443

instruction set summary (continued)

Table 21. TMS320x24x Instruction Set Summary (Continued)

’x24x

DESCRIPTION

WORDS/

OPCODE

MNEMONIC

DESCRIPTION

CYCLES

MSB

LSB

Load accumulator immediate short

1/1

1011

1001

KKKK

LACL

Zero accumulator

1/1

1011

1001

0000

LACL

Zero low accumulator and load high accumulator

1/1

0110

1010

IADD

RESS

Zero low accumulator and load low accumulator with no sign extension

1/1

0110

1001

IADD

RESS

LACT

Load accumulator with shift specified by T register

1/1

0110

1011

IADD

RESS

Load auxiliary register

1/2

0000

0ARx

IADD

RESS

LAR

Load auxiliary register short immediate

1/2

1011

0ARx

KKKK

LAR

Load auxiliary register long immediate

2/2

1011

1111

0000

1ARx

Load auxiliary register long immediate

2/2

16-Bit Constant

LDP

Load data-memory page pointer

1/2

0000

1101

IADD

RESS

LDP

Load data-memory page pointer immediate

1/2

1011

110P

AGEP

OINT

LPH

Load high-P register

1/1

0111

0101

IADD

RESS

LST

Load status register ST0

1/2

0000

1110

IADD

RESS

LST

Load status register ST1

1/2

0000

1111

IADD

RESS

Load TREG

1/1

0111

0011

IADD

RESS

LTA

Load TREG and accumulate previous product

1/1

0111

0000

IADD

RESS

LTD

Load TREG, accumulate previous product, and move data

1/1

0111

0010

IADD

RESS

LTP

Load TREG and store P register in accumulator

1/1

0111

0001

IADD

RESS

LTS

Load TREG and subtract previous product

1/1

0111

0100

IADD

RESS

MAC

Multiply and accumulate

2/3

1010

0010

IADD

RESS

MAC

Multiply and accumulate

2/3

16-Bit Constant

MACD

Multiply and accumulate with data move

2/3

1010

0011

IADD

RESS

MACD

Multiply and accumulate with data move

2/3

16-Bit Constant

MAR

Load auxiliary register pointer

1/1

1000

1011

1000

1ARx

MAR

Modify auxiliary register

1/1

1000

1011

IADD

RESS

MPY

Multiply (with TREG, store product in P register)

1/1

0101

0100

IADD

RESS

MPY

Multiply immediate

1/1

110C

KKKK

MPYA

Multiply and accumulate previous product

1/1

0101

0000

IADD

RESS

MPYS

Multiply and subtract previous product

1/1

0101

0001

IADD

RESS

MPYU

Multiply unsigned

1/1

0101

IADD

RESS

NEG

Negate accumulator

1/1

1011

1110

0000

0010

NMI

Nonmaskable interrupt

1/4

1011

1110

0101

0010

NOP

No operation

1/1

1000

1011

0000

NORM

Normalize contents of accumulator

1/1

1010

0000

IADD

RESS

OR with accumulator

1/1

0110

1101

IADD

RESS

OR immediate with accumulator with shift

2/2

1011

1111

1100

SHFT

OR immediate with accumulator with shift

2/2

16-Bit Constant

OR immediate with accumulator with shift of 16

2/2

1011

1110

1000

0010

OR immediate with accumulator with shift of 16

2/2

16-Bit Constant

OUT

Output data to port

2/3

0000

16BIT

1100

I/O

IADD

PORT

RESS

ADRS

PAC

Load accumulator with P register

1/1

1011

1110

0000

0011

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