GMS90 Hynix Semiconductor, GMS90 Datasheet - Page 47

• Manufacturer Part Number: GMS90
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: Hynix Semiconductor

GMS90 Series
Figure 5. External Data Memory Read Cycle
Figure 6. External Data Memory Write Cycle
Dec. 1998 Ver 3.0
PORT 0
PORT 2
PORT 0
PORT 2
PSEN
PSEN
ALE
ALE
WR
RD
t
AVLL
t
AVLL
t
t
LHLL
LHLL
A0-A7 from
RI or DPL
A0-A7 from
RI or DPL
t
LLAX2
t
AVWL
t
t
LLAX2
AVWL
t
QVWX
t
LLWL
t
LLWL
P2.0-P2.7 or A8-A15 from DPH
P2.0-P2.7 or A8-A15 from DPH
t
AVDV
t
LLDV
t
RLAZ
t
RLDV
t
DATA OUT
QVWH
t
RLRH
t
WLWH
t
RHDX
DATA IN
t
RHDZ
t
WHLH
t
WHLH
t
A0-A7 from PCL
WHQX
A0-A7 from PCL
A8-A15 from PCH
A8-A15 from PCH
INSTR. IN
INSTR. IN
43