DS07-16303-3E Datasheet, PDF (19/97 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91121
• Condition code register (CCR)
S-flag : Specifies a stack pointer used as R15.
I-flag : Controls user interrupt request enable/disable.
N-flag : Indicates sign bit when division result is assumed to be in the 2’s complement format.
Z-flag : Indicates whether or not the result of division was “0”.
V-flag : Assumes the operand used in calculation in the 2’s complement format and indicates whether
or not overflow has occurred.
C-flag : Indicates if a carry or borrow from the MSB has occurred.
• System condition code register (SCR)
T-flag : Specifies whether or not to enable step trace trap.
• Interrupt level mask register (ILM)
ILM4 to ILM0 : Register for holding interrupt level mask value. The value held by this register is used as a
level mask. When an interrupt request issued to the CPU is higher than the level held by ILM,
the interrupt request is accepted.
ILM4
ILM3
ILM2
ILM1
ILM0
Interrupt level High-low
0
0
0
0
0
0
High
:
:
:
:
0
1
0
0
0
15
:
:
:
:
1
1
1
1
1
31
Low
19