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Z80195_ View Datasheet(PDF) - Zilog

Part Name
Description
MFG CO.
Z80195_
Zilog
Zilog Zilog
'Z80195_' PDF : 326 Pages View PDF
Z 8018x Fam ily
M PU Us e r M anual
24
1st Op Code 2nd Op Code Displacement
Fetch Cycle Fetch Cycle Read Cycle
CPU internal
Operation
Memory
Next instruction
Write Cycle Fetch Cycle
T1 T2 T3 T1 T2 T3 T1 T2 T3 T1 T1 T1 T1 T2 T3 T1 T2
Phi
A0A19
D0D7
M1
MREQ
RD
PC
(DDH)
PC+1
(7OH77H)
PC+2
d
IX+d
g
PC+3
WR
Machine Cycle
MC1
MC2
NOTE: d = displacement
g = register contents
MC3 MC4 MC5 MC6 MC7
Figure 14. Instruction Timing Diagram
This instruction moves the contents of a CPU register (g) to the memory
location with address computed by adding a signed 8-bit displacement (d)
to the contents of an index register (IX).
The instruction cycle begins with the two machine cycles to read the two
byte instruction Op Code as indicated by M1 Low. Next, the instruction
operand (d) is fetched.
UM005001-ZMP0400
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