Datasheet

DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers
8 of 46
Figure 2. Page Mode 1 Timing
ALE
Port 0
Port 2
LSB
DATA
XTAL1
P
SEN
R
D
W
R
LSB LSB LSB
DATA
MOVX
OPCODE
t
CLCL
t
AVLL2
t
LHLL
tRLDV
t
WLWH
t
LLAX2
t
LLWL
t
LLAX
t AVIV2
t
PXIX
t
PLPH
tPLIV
t AVWL2
t
LLAX3
t
RLRH
t
WHLH
t
WHQX
MSB LSB MSBMSB MSB LSB
OPCODE
MOVX
t QVWX
t
AVDV2
tRHDX
Figure 3. Page Mode 2 Timing
ALE
Port 0
Port 2
MSB
OPCODE
XTAL1
P
SEN
R
D
W
R
MSB MSB
LSB
MSB
DATA
MOVX MOVX
t
CLCL
t
AVLL2
t
LHLL
t
WLWH
t
LLAX2
t
LLWL
t
LLPL
t
LLIV
t
AVIV0
t
PXIX
t
PLIV
t
AVLL3
t
LLAX3
t
PLPH
t
PLAZ
t
WHLH
t
WHQX
t
QVWX
t
AVIV2
t
AVDV2
t
AVWL2
t
PXIZ
t
AVLL
t
LLDV
t
AVDV0
t
RHDX
t
RHDZ
t
RLDV
t
AVWL0
t
LLAX
LSBLSB LSB LSBLSB
OPCODE DATA
t
RLRH