FlashFlex MCU
SST89E516RD2 / SST89E516RD
SST89V516RD2 / SST89V516RD
Data Sheet
T
LHLL
ALE
T
PLPH
T
T
LLIV
AVLL
T
LLPL
T
PLIV
PSEN#
T
PXAV
T
PLAZ
T
PXIZ
PXIX
INSTR IN
T
LLAX
T
A0 - A7
PORT 0
PORT 2
A0 - A7
T
AVIV
A8 - A15
A8 - A15
1273 F32.0
FIGURE 14-3: External Program Memory Read Cycle
T
LHLL
ALE
T
WHLH
PSEN#
T
LLDV
T
RLRH
T
T
LLWL
RD#
T
LLAX
T
RHDZ
RLDV
T
AVLL
T
RLAZ
T
RHDX
A0-A7 FROM PCL
A0-A7 FROM RI or DPL
DATA IN
INSTR IN
PORT 0
PORT 2
T
AVWL
T
AVDV
P2[7:0] or A8-A15 FROM DPH
A8-A15 FROM PCH
1273 F33.0
FIGURE 14-4: External Data Memory Read Cycle
©2007 Silicon Storage Technology, Inc.
S71273-03-000
1/07
72
SST [ SILICON STORAGE TECHNOLOGY, INC ]
