
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
Содержание MN103001G/F01K
Страница 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 7: ...14 A D Converter 15 I O Ports 16 Internal Flash Memory 17 Ordering Mask ROM Appendix 14 15 16 17 ...
Страница 8: ......
Страница 9: ...Table of Contents List of Figures and Tables 0 ...
Страница 26: ...xviii ...
Страница 27: ...1 0 1 General Specifications ...
Страница 35: ...2 CPU 2 ...
Страница 57: ...3 Extension Instruction Specifications 3 ...
Страница 96: ...Extension Instruction Specifications 3 40 ...
Страница 97: ...4 Memory Modes 3 4 ...
Страница 102: ...Memory Modes 4 6 ...
Страница 103: ...5 Operating Mode 5 ...
Страница 107: ...6 Clock Generator 6 13 ...
Страница 111: ...7 Internal Memory 7 ...
Страница 114: ...Internal Memory 7 4 ...
Страница 115: ...8 Bus Controller BC 8 ...
Страница 189: ...9 Interrupt Controller 9 ...
Страница 220: ...Interrupt Controller 9 32 ...
Страница 221: ...10 8 bit Timers 9 10 ...
Страница 254: ...8 bit Timers 10 34 ...
Страница 255: ...11 16 bit Timers 11 ...
Страница 292: ...16 bit Timers 11 38 ...
Страница 293: ...12 Watchdog Timer 11 12 ...
Страница 302: ...Watchdog Timer 12 10 ...
Страница 303: ...13 Serial Interface 13 ...
Страница 354: ...Serial Interface 13 52 ...
Страница 355: ...14 A D Converter 14 ...
Страница 367: ...15 I O Ports 15 ...
Страница 431: ...16 Internal Flash Memory 16 ...
Страница 439: ...17 17 Ordering Mask ROM ...
Страница 442: ...Ordering Mask ROM 17 4 ...
Страница 443: ...Appendix ...