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Extension Instruction Specifications
3-4
Multiply Register
Multiply & Accumulate
Register (Higher)
Multiply & Accumulate
Register (Lower)
Multiply & Accumulate
Overflow Detect Flag Register
Bit 0
MCVF
Bit 31
Bit 0
Bit 31
Bit 0
Bit 31
Bit 0
MDRQ
MCRH
MCRL
3.2.2 Extension Block Register Set
The extension block has the following dedicated registers in which it stores the results of high-speed multiplication
operations and multiply-and-accumulate operations.
Fig. 3-2-1 Extension Block Register Set
■
Multiply register (32 bits x 1 register)
This register is provided for high-speed multiplication instructions. A multiplication instruction uses this
register to store the high-order 32 bits of the 64-bit multiplication result.
■
Multiply-and-accumulate register (higher) (32 bits x 1 register)
This register is provided for multiply-and-accumulate operation instructions. A multiply-and-accumulate
operation instruction uses this register to store the high-order 32 bits of the 64-bit multiply-and-accumulate
operation result.
■
Multiply-and-accumulate register (lower) (32 bits x 1 register)
This register is provided for multiply-and-accumulate operation instructions. A multiply-and-accumulate
operation instruction uses this register to store the low-order 32 bits of the 64-bit multiply-and-accumulate
operation result.
■
Multiply-and-accumulate overflow detect flag register (1 bit x 1 register)
This one-bit register is set when an overflow occurs in a multiply-and-accumulate operation. This flag is
not cleared until the next CLRMAC instruction or PUTCX instruction is executed.
Содержание MN103001G/F01K
Страница 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
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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 ...