Texas Instruments MSP50C6xx manual Operands, Offset16 ≤, Port4 ≤ Port6 ≤, Symbol Meaning

Models: MSP50C6xx

1 390
Download 390 pages 41.72 Kb
Page 156
Image 156

Legend

4.13 Legend

All instructions of the MSP50P614/MSP50C614 use the following syntax:

name [dest] [, src] [, src1] [, mod]

name Name of the instruction. Instruction names are shown in bold letter through out the text.

dest Destination of the data to be stored after the execution of the instruction. Optional for some instructions or not used. Destination is also used as both source and destination for some instructions.

src Source of the first data. Optional for some instructions or not used.

src1 Source of the second data. Some instructions use a second data source. Optional for some instructions or not used.

mod Post modification of a register. This can be either next A or Rmod and will be specified in the instruction.

The following table describes the meanings of the symbols used in the instruction set descriptions:

Bold type means it must be typed exactly as shown. italics type means it is a variable.

[ ] square brackets enclose optional arguments.

Operands

0

dma6

 

63

 

 

0

dma16

65535

dma16

639 for MSP50P614/MSP50C614

0

imm5

31

 

 

0

imm16

65535

 

 

0

offset6

63

 

 

0

offset7

127

 

 

0

offset16 65535

 

 

0

pma8

 

255

 

 

0

pma16

65535

pma16

32767 for MSP50P614/MSP50C614

0

port4

15

 

 

0

port6

63

 

 

Symbol Meaning

!Invert the bit of the source. Used with flag addressing only.

An

Accumulator selector where n = 0...3. An is the accumulator pointed by APn.

 

 

An~

Offset accumulator selector where n = 0...3. An is the accumulator pointed by APn+16; APn wraps

 

after 31.

 

 

4-70

Page 156
Image 156
Texas Instruments MSP50C6xx manual Operands, Offset16 ≤, Port4 ≤ Port6 ≤, Symbol Meaning