C505_9708 SIEMENS [Siemens Semiconductor Group], C505_9708 Datasheet - Page 42

• Manufacturer Part Number: C505_9708
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Figure 4-1
External Program Memory Execution
Semiconductor Group
a)
b)
ALE
PSEN
RD
P2
P0
ALE
PSEN
RD
P2
P0
PCH
OUT
PCH
OUT
INST
INST
IN
IN
S1
S1
PCL OUT
PCL OUT
valid
OUT
OUT
PCL
valid
PCL
S2
S2
One Machine Cycle
One Machine Cycle
PCH
OUT
PCH
OUT
S3
S3
INST
INST
IN
IN
S4
S4
PCL OUT
DPL or Ri
valid
valid
OUT
PCL
S5
S5
OUT
PCH
S6
S6
4-2
INST
DPH OUT OR
IN
P2 OUT
S1
S1
PCL OUT
valid
OUT
PCL
S2
S2
One Machine Cycle
One Machine Cycle
DATA
IN
OUT
PCH
S3
S3
INST
IN
S4
S4
External Bus Interface
PCL OUT
PCL OUT
valid
valid
S5
OUT
S5
OUT
PCL
PCL
PCH
OUT
S6
S6
PCH
OUT
INST
INST
C505 / C505C
IN
IN
MCD02575
(A)
without
MOVX
(B)
with
MOVX
1997-08-01