UPSD3354DV-40U6 Datasheet, PDF (184/272 Pages) STMicroelectronics – fast 8032 MCU with programmable logic

PSD module
UPSD33xx
Table 117. Flash memory instruction sequences^(1)(2)(3)
Instr.
sequence
Bus
cycle 1
Bus
cycle 2
Bus
cycle 3
Bus
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
Section 2
7.4.4
Program
(write) a
Byte to
Flash
memory
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write A0h Write data
to X555h byte to
(command) address
Section 2
7.4.9
Bypass
Unlock
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 20h
to X555h
(command)
Section 2
7.4.13
Program a
) _{Byte to}
t(s ^Flash
c ^{memory with}
u Bypassed
Write A0h
to XXXXh
(command)
Write data
byte to
address
d Unlock
Section 2
7.4.13
ro _Reset
P _Bypass
te ^Unlock
Write 90h Write 00h
to XXXXh to XXXXh
(command) (command)
Section 2
7.4.13
le _{Flash Bulk}
so ^Erase(3)
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 80h Write AAh
to X555h to X555h
(command) (unlock)
Write 55h Write 10h
to XAAAh to X555h
(unlock) (command)
Section 2
7.4.15
Ob _{Flash Sector}
t(s) ^{- Erase}
Write AAh
to X555h
(unlock)
Write 55h
to XAAAh
(unlock)
Write 80h Write AAh
to X555h to X555h
(command) (unlock)
Write 55h
to XAAAh
(unlock)
Write 30h Write 30h
to desired to another Section 2
Sector
Sector
7.4.16
(command) (command)
roduc Suspend
P Sector
solete ^Erase
Write B0h
to address
that
activates
FSx or
CSBOOTx
where
erase is in
progress
(command)
Section 2
7.4.17
Ob^{1. All values are in hexadecimal, X = Don’t care}
2. 8032 addresses A12 through A15 are “Don’t care” during the instruction sequence decoding. Only address bits A0-A11 are
used during decoding of Flash memory instruction sequences. The individual sector select signal (FS0 - FS7 or CSBOOT0-
CSBOOT3) which is active during the instruction sequence determines the complete address.
3. Directing this command to any individual sector within a Flash memory array will invoke the bulk erase of all Flash memory
sectors within that array.
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Doc ID 9685 Rev 7