T89C51AC2-SLSIM View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'T89C51AC2-SLSIM' PDF : 121 Pages View PDF
A/T89C51AC2
Sharing Instructions
Table 28. Instructions shared
Action
RAM
XRAM
ERAM
EEPROM
DATA
Read
MOV MOVX
MOVX
Write
MOV MOVX
MOVX
Note: by cl: using Column Latch
Boot
FLASH
MOVC
-
Table 29. Read MOVX A, @DPTR
EEE bit in
EECON
FPS in
Register
FCON Register ENBOOT
EA
0
0
X
X
0
1
X
X
1
0
X
X
1
1
X
X
FM0
MOVC
by cl
Hardware
Byte
MOVC
by cl
XROW
MOVC
by cl
XRAM
ERAM
OK
OK
OK
EEPROM
DATA
Flash
Column
Latch
OK
Table 30. Write MOVX @DPTR,A
EEE bit in
EECON
FPS bit in
Register FCON Register ENBOOT
EA
0
0
X
X
1
0
1
X
0
1
0
X
X
1
1
1
X
0
XRAM
ERAM
OK
OK
OK
EEPROM
Data
Flash
Column
Latch
OK
OK
OK
45
4127H–8051–02/08
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