Fujitsu F2MC-16LX Hardware Manual page 60

16-bit microcontroller mb90330 series
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CHAPTER 2 CPU
POPW PS
The SSB or the USB is used according to the S flag regardless of the prefix. The effect of the prefix reaches
the following instruction.
MOV ILM,#imm8
The instruction operation is normal although the prefix continuously affects the next instruction.
RETI
SSB is used regardless of the prefix.
Common Register Bank Prefix (CMR)
To facilitate data exchange between multiple tasks, the same register bank access must be relatively easy
regardless of the register bank pointer (RP) value. When the CMR precedes the instruction to access the
register bank, the instruction accesses the common bank (register bank selected when RP = 0) at the
address of 000180
Be careful, however, when using following instructions:
String instruction (MOVS,MOVSW,SCEQ,SCWEQ,FILS,FILSW)
When an interrupt request occurs during the execution of string instruction added with prefix code and the
string instruction returns after the interrupt process, the prefix code is disabled. Therefore, the string
instruction malfunctions after the interrupt process. Please do not add the CMR prefix to the above string
instruction.
Flag change instruction (AND CCR,#imm8,OR CCR,#imm8)
The instruction operation is normal although the prefix continuously affects the next instruction.
MOV ILM,#imm8
The instruction operation is normal although the prefix continuously affects the next instruction.
Flag Change Suppression Prefix (NCC)
To suppress the flag change, the flag change suppression prefix code (NCC) is used. Placing the NCC
before the instruction can suppress the flag change accompanying the instruction. Be careful, however,
when using following instructions:
String instruction (MOVS,MOVSW,SCEQ,SCWEQ,FILS,FILSW)
When an interrupt request occurs during the execution of string instruction added with prefix code and the
string instruction returns after the interrupt process, the prefix code is disabled. Therefore, the string
instruction malfunctions after the interrupt process. Please do not add the CMR prefix to the above string
instruction.
Flag change instruction (AND CCR,#imm8,OR CCR,#imm8)
The instruction operation is normal although the prefix continuously affects the next instruction.
44
to 00018F
regardless of the current RP value.
H
H

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