mpc89x51a Megawin Technology, mpc89x51a Datasheet - Page 33
mpc89x51a
Manufacturer Part Number
mpc89x51a
Description
8-bit Micro-controller
Manufacturer
Megawin Technology
Datasheet
1.MPC89X51A.pdf
(39 pages)
- Current page: 33 of 39
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Note for Other SFR
SFR: AUXR
SFR: AUXR1
ERAM: Define if hide the expanded RAM, so to access to the external RAM
AO: 0: = ALE is emitted at a constant rate of 1/6 the oscillator frequency for 12T mode, and at a constant
GF2: General purpose flag
DPS: Data pointer switch
MEGAWIN
Bits-7
Bits-7
1: = ALE is active only during access to external memory for both MOVC and MOVX
-
-
0: = Make the data pointer-0 active
1: = Make the data pointer-1 active
0: = The internal auxiliary RAM access is enabled
1: =The internal auxiliary RAM access is disabled. The MOVX instructions always direct to
rate of 1/3 the oscillator frequency for 6T mode
external RAM.
Bits-6
Bits-6
-
-
Bits-5
Bits-5
-
-
MPC89x51A Data Sheet
Bits-4
Bits-4
-
-
Bits-3
Bits-3
GF2
-
Bits-2
Bits-2
-
-
ERAM
Bits-1
Bits-1
-
Bits-0
Bits-0
DPS
AO
33
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