Panasonic MN101L Series

Chapter 2
CPU
II - 18 Extended Calculation Function
2.3.2 Extended Calculation Control Register
Extended calculation can be executed by setting the extended calculation control bit.
 Extended Calculation Control Register (AUCTR: 0x03F07)
bp76543210
Bit name
AUBCDSUBC AUBCDSUB AUBCDADDC AUBCDADD Reserved AUDIVU AUMUL AUMULU
At reset00000000
AccessWWWWWWWW
bp Bit name Description
7 AUBCDSUBC
BCD subtraction with carry
0: Disabled
1: Enabled
6AUBCDSUB
BCD subtraction without carry
0: Disabled
1: Enabled
5 AUBCDADDC
BCD addition with carry
0: Disabled
1: Enabled
4 AUBCDADD
BCD addition without carry
0: Disabled
1: Enabled
3 Reserved Must be set to 0.
2AUDIVU
Unsigned division execution
0: Disabled
1: Enabled
1 AUMUL
Signed multiplication execution
0: Disabled
1: Enabled
0 AUMULU
Unsigned multiplication execution
0: Disabled
1: Enabled