SFR: AUXR (Auxiliary Register)
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
T0X12
T1X12
URM0X6
EADCI
ESPI
ENLVFI
-
-
T0X12: = T0 clock source selector
0:= (default)
Set the frequency of the clock source for T0 as the oscillator frequency divided-by-12.
It will compatible to the traditional 80C51 MCU.
1:=
Set the frequency of the clock source for T0 as the oscillator frequency.
It will drive the T0 faster than a traditional 80C51 MCU.
T1X12: = T1 clock source selector
0:= (default)
Set the frequency of the clock source for T1 as the oscillator frequency divided-by-12.
It will compatible to the traditional 80C51 MCU.
1:=
Set the frequency of the clock source for T1 as the oscillator frequency.
It will drive the T1 faster than a traditional 80C51 MCU.
URM0X6: = Baud rate selector of UART while it is working under Mode-0
0:= (default)
Set the baud rate of the UART functional block as oscillator frequency divided-by-12.
It will compatible to the traditional 80C51 MCU.
1:=
Set the baud rate of the UART functional block as oscillator frequency divided-by-2.
It will transmit/receive data faster than a traditional 80C51 MCU.
EADCI: = Enable/Disable interrupt from A/D converter
0:= (default)
Inhibit the ADC functional block to generate interrupt to the MCU
1:=
Enable the ADC functional block to generate interrupt to the MCU
ESPI: = Enable/Disable interrupt from Serial Peripheral Interface (SPI)
0:= (default)
Inhibit the SPI functional block to generate interrupt to the MCU
1:=
Enable the SPI functional block to generate interrupt to the MCU
ENLVFI: = Enable/Disable interrupt from low-voltage sensor
0:= (default)
Inhibit the low-voltage sensor functional block to generate interrupt to the MCU
1:=
Enable the low-voltage sensor functional block to generate interrupt to the MCU
26
MPC82x54A Data Sheet
MEGAWIN
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