Interrupt Priority Registers - STC micro STC8A8K64D4 Series Reference Manual

STC8A8K64D4 Series Manual
DMA_UR2R_STA FA4AH
DMA_UR3T_STA FA52H
DMA_UR3R_STA FA5AH
DMA_UR4T_STA FA62H
DMA_UR4R_STA FA6AH
DMA_LCM_STA FA72H
M2MIF: DMA_M2M(Memory-to-Memory DMA) interrupt request flag. Need to be cleared by software.
ADCIF: DMA_ADC(ADC DMA) interrupt request flag. Need to be cleared by software.
SPIIF: DMA_SPI(SPI DMA) interrupt request flag. Need to be cleared by software. 。
UR1TIF: DMA_UR1T(UART1 send DMA) interrupt request flag. Need to be cleared by software.
UR1RIF: DMA_UR1R(UART1 receive DMA) interrupt request flag. Need to be cleared by software.
UR2TIF: DMA_UR2T(UART2 send DMA) interrupt request flag. Need to be cleared by software.
UR2RIF: DMA_UR2R(UART2 receive DMA) interrupt request flag. Need to be cleared by software.
UR3TIF: DMA_UR3T(UART3 send DMA) interrupt request flag. Need to be cleared by software.
UR3RIF: DMA_UR3R(UART3 receive DMA) interrupt request flag. Need to be cleared by software.
UR4TIF: DMA_UR4T(UART4 send DMA) interrupt request flag. Need to be cleared by software.
UR4RIF: DMA_UR4R(UART4 receive DMA) interrupt request flag. Need to be cleared by software.
LCMIF: DMA_LCM(LCM interface DMA) interrupt request flag. Need to be cleared by software.

11.4.3 Interrupt Priority Registers

Except INT2, INT3, Timer 2, Timer 3 and Timer 4, all other interrupts have 4 levels of interrupt priority that can be set.
Interrupt Priority Control Registers
Symbol Address
IP B8H
IPH B7H
IP2 B5H
IP2H B6H
IP3 DFH
IP3H EEH
PX0H,PX0: External interrupt 0 interrupt priority control bit.
00: INT0 interrupt priority level is 0 (lowest)
01: INT0 interrupt priority level is 1 (lower)
10: INT0 interrupt priority level is 2 (higher)
11: INT0 interrupt priority level is 3 (highest)
PT0H,PT0: Timer 0 interrupt priority control bit.
00: Timer 0 interrupt priority level is 0 (lowest)
01: Timer 0 interrupt priority level is 1 (lower)
10: Timer 0 interrupt priority level is 2 (higher)
11: Timer 0 interrupt priority level is 3 (highest)
PX1H,PX1: External interrupt 1 interrupt priority control bit.
00: INT1 interrupt priority level is 0 (lowest)
01: INT1 interrupt priority level is 1 (lower)
10: INT1 interrupt priority level is 2 (higher)
11: INT1 interrupt priority level is 3 (highest)
PT1H,PT1: Timer 1 interrupt priority control bit.
00: Timer 1 interrupt priority level is 0 (lowest)
01: Timer 1 interrupt priority level is 1 (lower)
10: Timer 1 interrupt priority level is 2 (higher)
11: Timer 1 interrupt priority level is 3 (highest)
PSH,PS: UART1 interrupt priority control bit.
00: UART1 interrupt priority level is 0 (lowest)
01: UART1 interrupt priority level is 1 (lower)
10: UART1 interrupt priority level is 2 (higher)
11: UART1 interrupt priority level is 3 (highest)
- -
- -
- -
- -
- -
- -
B7 B6
PPCA PLVD
PPCAH PLVDH
- PI2C
- PI2CH
- -
- -
- -
- -
- -
- -
- -
- -
B5 B4
PADC PS
PADCH PSH
PCMP PX4
PCMPH PX4H
- -
- -
-
- - RXLOSS
- TXOVW
- - RXLOSS
- TXOVW
- - RXLOSS
- - TXOVW
B3 B2
PT1 PX1
PT1H PX1H
PPWMFD PPWM
PPWMFDH PPWMH
-
-
UR2RIF
- UR3TIF
UR3RIF
- UR4TIF
UR4RIF
LCMIF
B1 B0
PT0 PX0
PT0H PX0H
PSPI PS2
PSPIH PS2H
PS4 PS3
PS4H PS3H
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