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SST89V52RD2-33-I-TQIE1 Datasheet(PDF) 36 Page - Silicon Storage Technology, Inc

No. de pieza SST89V52RD2-33-I-TQIE1
Descripción Electrónicos  FlashFlex51 MCU
Download  81 Pages
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Fabricante Electrónico  SST [Silicon Storage Technology, Inc]
Página de inicio  http://www.sst.com/
Logo SST - Silicon Storage Technology, Inc

SST89V52RD2-33-I-TQIE1 Datasheet(HTML) 36 Page - Silicon Storage Technology, Inc

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Data Sheet
FlashFlex51 MCU
SST89E52RD2/RD / SST89E54RD2/RD / SST89E58RD2/RD
SST89V52RD2/RD / SST89V54RD2/RD / SST89V58RD2/RD
©2006 Silicon Storage Technology, Inc.
S71255-05-000
5/06
4.2.4.4 Byte-Program
The Byte-Program command programs data into a single
byte. The address is determined by the contents of SFAH
and SFAL. The data byte is in SFDT.
FIGURE
4-4: Byte-Program
4.2.4.5 Byte-Verify
The Byte-Verify command allows the user to verify that the
device has correctly performed an Erase or Program com-
mand. Byte-Verify command returns the data byte in SFDT
if the command is successful. The user is required to check
that the previous flash operation has fully completed before
issuing a Byte-Verify. Byte-Verify command execution time
is short enough that there is no need to poll for command
completion and no interrupt is generated.
FIGURE
4-5: Byte-Verify
4.2.4.6 Prog-SB3, Prog-SB2, Prog-SB1
Prog-SB3, Prog-SB2, Prog-SB1 commands are used to
program the security bits (see Table 9-1). Completion of
any of these commands, the security options will be
updated immediately.
Security bits previously in un-programmed state can be
programmed by these commands. Prog-SB3, Prog-SB2
and Prog-SB1 commands should only reside in Block 1 or
external code memory.
FIGURE
4-6: Prog-SB3, Prog-SB2, Prog-SB1
Move data to SFDT
MOV SFDT, #data
Interrupt scheme
MOV SFCM, #8EH
Polling scheme
MOV SFCM, #0EH
INT1 interrupt
indicates completion
SFST[2] indicates
operation completion
Program byte address
MOV SFAH, #byte_addressH
MOV SFAL, #byte_addressL
1255 F11.0
IAP Enable
ORL SFCF, #40H
MOV SFCM, #0CH
SFDT register
contains data
Program byte address
MOV SFAH, #byte_addressH
MOV SFAL, #byte_addressL
1255 F12.0
IAP Enable
ORL SFCF, #40H
Set-Up
MOV SFDT, #0AAH
OR
OR
INT1# Interrupt
indicates completion
Polling SFST[2]
indicates completion
Program SB2
MOV SFCM, #03H
or
MOV SFCM, #83H
Program SB1
MOV SFCM, #0FH
or
MOV SFCM, #8FH
Program SB3
MOV SFCM, #05H
or
MOV SFCM, #85H
1255 F13.0
IAP Enable
ORL SFCF, #40H


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