參數(shù)資料
型號: μPD789217Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 93/144頁
文件大?。?/td> 632K
代理商: ΜPD789217Y
Preliminary Product Information
93
μ
PD789216Y, 789217Y
6.9.3
Multiplier control register
The following register is used to control the multiplier:
Multiplier control register 0 (MULC0)
MULC0 not only controls operations, but also indicates the operation status of the multiplier.
MULC0 is manipulated using a 1-bit or 8-bit memory manipulation instruction.
A RESET input clears MULC0 to 00H.
Figure 6-44. Format of Multiplier Control Register 0 (MULC0)
0
0
0
0
0
0
0
MULST0
MULC0
Symbol
Address
When reset
R/W
FFD2H
00H
R/W
6
7
5
4
3
2
1
0
MULST0
0
1
Multiplier operation start control bit
Operation is stopped after the counter is cleared to 0.
Operation is stopped.
Multiplier operation status
Operation is enabled.
Operation is being executed.
Caution
Bits 1 to 7 must be fixed to 0.
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