STC8A8K64D4 Series Manual
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hidden interrupt request flag is set to 1, and request an interrupt and wait, it is mistakenly cleared by the user.
This is different from the traditional INTEL8048, 8051, but INTEL has been discontinued, so the new design of STC does
not consider the specifications compatible with traditional INTEL.
This is the further development of 8051 by China STC.
UARTs Control Registers
TI: Transmit interrupt flag of UART1, which must be cleared by software.
RI: Receive interrupt flag of UART1, which must be cleared by software.
S2TI: Transmit interrupt flag of UART2, which must be cleared by software.
S2RI: Receive interrupt flag of UART2, which must be cleared by software.
S3TI: Transmit interrupt flag of UART3, which must be cleared by software.
S3RI: Receive interrupt flag of UART3, which must be cleared by software.
S4TI: Transmit interrupt flag of UART4, which must be cleared by software.
S4RI: Receive interrupt flag of UART4, which must be cleared by software.
Power Control Register
LVDF: Low voltage detection interrupt flag, which must be cleared by software.
ADC Control Register
ADC_FLAG: ADC completes conversion interrupt request flag, which must be cleared by software.
SPI Status Register
SPIF:
SPI transmission completion interrupt request flag, which must be cleared by software.
PCA Control Register
CF: PCA counter interrupt request flag, which must be cleared by software.
CCF3: PCA module 3 interrupt request flag, which must be cleared by software.
CCF2: PCA module 2 interrupt request flag, which must be cleared by software.
CCF1: PCA module 1 interrupt request flag, which must be cleared by software.
CCF0: PCA module 0 interrupt request flag, which must be cleared by software.
Comparator Control Register 1
CMPIF: Comparator interrupt request flag, which must be cleared by software.
I2C Status Registers
MSIF: I
2
C master mode interrupt request flag, which must be cleared by software.
ESTAI: I
2
C slave receives the START event interrupt request flag, which must be cleared by software.
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