mpc82x54a Megawin Technology, mpc82x54a Datasheet - Page 31

• Manufacturer Part Number: mpc82x54a
• Description: 8-bit Micro-controller
• Manufacturer: Megawin Technology

MEGAWIN
SFR: IP (Interrupt Priority Low)
SFR: IPH (Interrupt Priority High)
ET0:=Interrupt controller of Timer-0 interrupt.
EX0:=Interrupt controller of external interrupt-0.
PPCA_LVD := If set, Set priority for PCA /LVF interrupt higher
PSPI_ADC := If set, Set priority for SPI/ADC interrupt higher
PS
PT1
PX1
PT0
PX0
PPCAH_LVD:= If set, Set priority for PCA /LVF interrupt higher
PSPIH_ADC := If set, Set priority for SPI/ADC interrupt higher
PSH
PT1H
PX1H
PT0H
PX0H
IP and IPH are combined to form 4-level priority interrupt as the following table.
Bit-7
Bit-7
-
-
0:=(default)
1:=
0:=(default)
1:=
{IPH.x , IP.x}
Disable
Enable
Disable
Enable
PPCAH_LVD PSPIH_ADC
PPCA_LVD PSPI_ADC
:= If set, Set priority for serial port interrupt higher(UART)
:= If set, Set priority for timer1 interrupt higher
:= If set, Set priority for external interrupt 1 higher
:=
:= If set, Set priority for external interrupt 0 higher
10
01
00
11
:= If set, Set priority for serial port interrupt higher(UART)
:= If set, Set priority for timer1 interrupt higher
:= If set, Set priority for external interrupt 1 higher
:= If set, Set priority for timer0 interrupt higher
:= If set, Set priority for external interrupt 0 higher
Bit-6
Bit-6
If set, Set priority for timer0 interrupt higher
Bit-5
Bit-5
MPC82x54A Data Sheet
Priority
Level
1 (highest)
2
3
4
Bit-4
PS
Bit-4
PSH
Bit-3
PT1
PT1H
Bit-3
Bit-2
PX1
PX1H
Bit-2
Bit-1
PT0
PT0H
Bit-1
Bit-0
PX0
PX0H
Bit-0
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