MPC89L54A Megawin Technology, MPC89L54A Datasheet - Page 32

• Manufacturer Part Number: MPC89L54A
• Description: 8-bit micro-controller
• Manufacturer: Megawin Technology

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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 rate
GF2: General purpose flag
DPS: Data pointer switch
32
Bit-7
Bit-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 external
of 1/3 the oscillator frequency for 6T mode
RAM.
Bit-6
Bit-6
-
-
Bit-5
Bit-5
-
-
MPC89x54A Data Sheet
Bit-4
Bit-4
-
-
Bit-3
Bit-3
GF2
-
Bit-2
Bit-2
-
-
ERAM
Bit-1
Bit-1
-
Bit-0
Bit-0
DPS
AO
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