FlashFlex51 MCU
SST89E564RD / SST89V564RD / SST89E554RC / SST89V554RC
Data Sheet
TSU
RST
TES
PSEN#
TADS
ALE/PROG#
TPROG
EA#
P3[3]
TPB
P3[5:4], P2[5:0]
P1
P0
P3[7:6], P2[7:6]
AH
AL
DI
1110b
1207 F11.2
TDH
FIGURE 13-20: B
YTE
-P
ROGRAM
Programs the addressed code byte if the byte location has been successfully erased and not yet programmed.
Byte-Program operation is only allowed when the security lock is not activated on that flash memory block.
TSU
RST
TES
PSEN#
TADS
ALE/PROG#
TPROG
EA#
P3[3]
TPS
P3[7:6], P2[7:6]
TDH
1111b / 0011b / 0101b
1207 F12.2
FIGURE 13-21: P
ROG
-SB1 / P
ROG
-SB2 / P
ROG
-SB3
Programs the Security bits SB1, SB2 and SB3 respectively. Only a Chip-Erase will erase a programmed security bit.
©2003 Silicon Storage Technology, Inc.
S71207-04-000
12/03
81
SST [ SILICON STORAGE TECHNOLOGY, INC ]
