Maxim Integrated High-Speed Microcontroller - Manual (Page 87)

High-Speed Microcontroller User’s Guide
Rev: 062210 87 of 176
Figure 6-6. Four-Cycle MOVX Instruction
AD0-AD7
ALE
PORT 2
CLK
D0-D7
MOVX
Instruction
Address
MOVX
Instruction
MOVX
Data
A8-A15 A8-A15 A8-A15
FOUR CYCLE DATA MEMORY WRITE
STRETCH VALUE=2
C1 C2 C3 C4
MOVX Instruction
Next
Instruction
Read
MOVX
Data
Address
A8-A15
Next
Instruction
Address
C1 C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4 C1 C2 C3 C4
Last Cycle of
Previous
Instruction
Third
Machine
Cycle
Fourth
Machine
Cycle
Next
Instruction
Machine
Cycle
First
Machine
Cycle
Second
Machine
Cycle
A0-A7 D0-D7 A0-A7 D0-D7 A0-A7 A0-A7 D0-D7
PSEN
WR