UPSD33XX Datasheet, PDF (148/231 Pages) STMicroelectronics – Fast 8032 MCU with Programmable Logic

uPSD33xx
Table 80. Flash Memory Instruction Sequences^(1,2)
Instr.
Bus
Sequence Cycle 1
Bus
Cycle 2
Bus
Bus
Cycle 3 Cycle 4
Bus
Cycle 5
Bus
Cycle 6
Bus
Cycle 7
Link
Read
Memory
Contents
(Read
Array
mode)
Read byte
from any
valid Flash
memory
addr
Read
Memory
Contents., p
age 149
Program
(write) a
Byte to
Flash
Memory
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write A0h
to X555h
(command
)
Write
data byte
to
address
Programmin
g Flash
Memory., pa
ge 150
Bypass
Unlock
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 20h
to X555h
(command
)
Bypassed
Unlock
Sequence, p
age 153
Program a
Byte to
Flash
Memory
with
Bypassed
Unlock
Write A0h to
XXXXh
(command)
Write data
byte to
address
Bypassed
Unlock
Sequence, p
age 153
Reset
Bypass
Unlock
Write 90h to
XXXXh
(command)
Write 00h
to XXXXh
(command
)
Bypassed
Unlock
Sequence, p
age 153
Flash Bulk ^{Write AAh}
Erase⁽³⁾
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 80h
to X555h
(command
)
Write
AAh to
X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 10h
to X555h
(command)
Flash Bulk
Erase., page
153
Flash
Sector
Erase
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 80h
to X555h
(command
)
Write
AAh to
X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 30h
to desired
Sector
(command)
Write 30h
to another
Sector
(command)
Flash Sector
Erase., page
154
Suspend
Sector
Erase
Write B0h to
address that
activates
FSx or
CSBOOTx
where erase
is in
progress
(command)
Suspend
Sector
Erase., page
154
Resume
Sector
Erase
Write 30h to
address that
activates
FSx or
CSBOOTx
where
desired to
resume
erase
(command)
Resume
Sector
Erase., page
154
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