w79e532 Winbond Electronics Corp America, w79e532 Datasheet - Page 30

• Manufacturer Part Number: w79e532
• Description: 8-bit Microcontroller
• Manufacturer: Winbond Electronics Corp America

Continued
M2
0
1
1
1
1
PORT 0
PORT 2
PSEN
CLK
ALE
WR
M1
1
0
0
1
1
C1
MOVX Inst.
Address
M0
of Previous
Last Cycle
1
0
1
0
1
Instruction
C2
A0-A7
Figure 8. Data Memory Write with Stretch Value = 0
C3
A15-A8
MOVX Inst
MACHINE
C4
CYCLES
D0-D7
C1
5
6
7
8
9
Machine cycle
.
Next Inst.
Address
C2
A0-A7
First
MOVX instruction cycle
- 30 -
C3
A15-A8
Next Inst. Read
RD
IN CLOCKS
C4
STROBE
D0-D7
WIDTH
OR
12
16
20
24
28
C1
MOVX Data
Machine cycle
Address
WR
A0-A7
C2
Second
C3
A15-A8
MOVX Data out
W79E532/W79L532
D0-D7
C4
RD
@ 25 MHZ
STROBE
1120 nS
480 nS
640 nS
800 nS
960 nS
WIDTH
C1
OR
Next Instruction
Machine Cycle
A0-A7
C2
WR
C3
A15-A8
C4
D0-D7
RD
@ 40 MHZ
STROBE
300 nS
400 nS
500 nS
600 nS
700 nS
WIDTH
OR
WR