Rohm LAPIS SEMICONDUCTOR ML620Q503, User Manual

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ML620Q503/Q504 User's Manual
Chapter 2 CPU and Memory Space
FEUL620Q504 2–9
The flags changes during each operation as follows:
Operation mode SIGN C Z S OV Q
Multiplication
0 - * - - -
1 - * * - -
Division
0 * * - - -
1 * * * * -
Multiply-accumulate
(non-saturating)
0 * * * * -
1 * * * * -
Multiply-accumulate
(saturating)
0 * * * * *
1 * * * * *
*: Changes according to the result. -: No change.
2.7.2.4 Coprocessor ID Register (CR15)
Access: R
Access size: 8 bits
Initial value: 81H
7 6 5 4 3 2 1 0
CR15 COPID7 COPID6 COPID5 COPID4 COPID3 COPID2 COPID1 COPID0
R/W R R R R R R R R
Initial value 1 0 0 0 0 0 0 1
The coprocessor ID register is the coprocessor register that indicates the coprocessor ID. The bit symbol cannot
be used in the program.