Texas Instruments MSP50C6xx - Manual (Page 210)

Individual Instruction Descriptions
4-124
Example 4.14.29.2 MOVB *R2, A0
Copy lower 8 bits of accumulator A0 to the data memory byte pointed by R2.
Example 4.14.29.3 MOVB A0, 0xf2
Load accumulator A0 with value of 0xf2.
Example 4.14.29.4 MOVB MR, 34
Load MR register with immidiate value of 34 (decimal).
Example 4.14.29.5 MOVB R2, 255
Load R2 with immidiate value of 255 (decimal).