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Extension Instruction Specifications
3-33
(b) Note on the description of word/half-word data multiply-and-accumulate instructions and MCRH, MCRL
access instructions
When executing a word/half-word data multiply-and-accumulate instruction followed by an MCRH, MCRL access
instruction, the result produced by the word/half-word data multiply-and-accumulate instruction is used in the
execution of the subsequent MCRH, MCRL access instruction. Therefore, it is essential to not initiate the subsequent
MCRH, MCRL access instruction until after the result that is required from the word/half-word data multiply-and-
accumulate instruction has been output. As a result, two cycles must be inserted between the word/half-word data
multiply-and-accumulate instruction and the subsequent MCRH, MCRL access instruction.
This note applies to the following instructions:
<Word/half-word data multiply-and-accumulate instructions>
MAC instruction, MACH instruction, MACU instruction, MACHU instruction
<MCRH, MCRL access instructions>
PUTCX instruction, CLRMAC instruction, GETCHX instruction, GETCLX instruction
DEC
EX
MEM
WB
Instruction decoding
Operation
Instruction
decoding
Operation
Word/half-word data
MCRH, MCRL access instruction
Insert two cycles
M u l t i p l y - a nd - a c c um u l a t e
instruction has output the result
that is required by MCRH, MCRL
access instruction
Result can be
referenced
Multiply-and-accumulate instruction
Summary of Contents for MN103001G/F01K
Page 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Page 2: ......
Page 4: ......
Page 6: ......
Page 8: ......
Page 9: ...Table of Contents List of Figures and Tables 0 ...
Page 26: ...xviii ...
Page 27: ...1 0 1 General Specifications ...
Page 35: ...2 CPU 2 ...
Page 57: ...3 Extension Instruction Specifications 3 ...
Page 96: ...Extension Instruction Specifications 3 40 ...
Page 97: ...4 Memory Modes 3 4 ...
Page 102: ...Memory Modes 4 6 ...
Page 103: ...5 Operating Mode 5 ...
Page 107: ...6 Clock Generator 6 13 ...
Page 111: ...7 Internal Memory 7 ...
Page 114: ...Internal Memory 7 4 ...
Page 115: ...8 Bus Controller BC 8 ...
Page 189: ...9 Interrupt Controller 9 ...
Page 220: ...Interrupt Controller 9 32 ...
Page 221: ...10 8 bit Timers 9 10 ...
Page 254: ...8 bit Timers 10 34 ...
Page 255: ...11 16 bit Timers 11 ...
Page 292: ...16 bit Timers 11 38 ...
Page 293: ...12 Watchdog Timer 11 12 ...
Page 302: ...Watchdog Timer 12 10 ...
Page 303: ...13 Serial Interface 13 ...
Page 354: ...Serial Interface 13 52 ...
Page 355: ...14 A D Converter 14 ...
Page 367: ...15 I O Ports 15 ...
Page 431: ...16 Internal Flash Memory 16 ...
Page 439: ...17 17 Ordering Mask ROM ...
Page 442: ...Ordering Mask ROM 17 4 ...
Page 443: ...Appendix ...