Z80180 Datasheet, PDF (251/326 Pages) Zilog, Inc. – Z8018x Family MPU

Z8018x Family
MPU User Manual
235
Special Control Instructions
Table 47. Special Control Instructions
Flags
Operation
Name
Mnemonics Op Code
Addressing
Immed Ext Ind Reg Regi Imp Rel Bytes States
Operation
7642 10
S Z H P/V N C
Special DAA
Function
00 100 111
Carry
Control
CCF
00 111 111
SCF
00 110 111
CPU
DI
Control
11 110 011
EI
11 111 011
HALT
01 110 110
IM0
11 101 101
01 000 110
IM1
11 101 101
01 010 110
IM2
11 101 101
01 011 110
NOP
00 000 000
SLP**
11 101 101
01 110 110
7) Interrupts are not sampled at the end of DI or EI.
S/D
1
4
Decimal
Adjust
Accumulator
1
3
C→ C
↑ ↑ ↑ P •↑
••R • R ↑
1
3
1→ C
••R • R S
1
3
0→ IEF1,0→ IEF2 (7) • • • • • •
1
3
1→ IEF1,1→ ΙEF2 (7) • • • • • •
1
3
CPU halted
•••• ••
2
6
Interrupt
•••• ••
Mode 0
2
6
Interrupt
•••• ••
Mode 1
2
6
Interrupt
•••• ••
Mode 2
1
3
No operation
•••• ••
2
8
Sleep
•••• ••
UM005001-ZMP0400