Multiplier Control Register; Format Of Multiplier Control Register 0 - NEC PD789488 User Manual

Pd789489 subseries 8-bit single-chip microcontrollers
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14.3 Multiplier Control Register

The multiplier is controlled by the following register.
• Multiplier control register 0 (MULC0)
(1)
Multiplier control register 0 (MULC0)
MULC0 indicates the operating status of the multiplier after operation, as well as controls the multiplier.
MULC0 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input clears this register to 00H.
Symbol
7
6
MULC0
0
0
MULST0
0
Stop operation after resetting counter to 0.
1
Enable operation
Caution Be sure to set bits 1 to 7 to 0.
CHAPTER 14 MULTIPLIER
Figure 14-2. Format of Multiplier Control Register 0
5
4
3
2
0
0
0
0
Multiplier operation start control bit
User's Manual U15331EJ4V1UD
1
<0>
Address
After reset
0
MULST0
FFD2H
Operating status of multiplier
Operation stopped
Operation in progress
R/W
00H
R/W
269

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