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C8051F300 Datasheet(PDF) 73 Page - List of Unclassifed Manufacturers |
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C8051F300 Datasheet(HTML) 73 Page - List of Unclassifed Manufacturers |
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73 / 174 page  C8051F300/1/2/3/4/5 Rev. 2.6 73 8.3.5. Interrupt Register Descriptions The SFRs used to enable the interrupt sources and set their priority level are described below. Refer to the datasheet section associated with a particular on-chip peripheral for information regarding valid interrupt conditions for the peripheral and the behavior of its interrupt-pending flag(s). SFR Definition 8.7. IE: Interrupt Enable Bit7: EA: Enable All Interrupts. This bit globally enables/disables all interrupts. It overrides the individual interrupt mask set- tings. 0: Disable all interrupt sources. 1: Enable each interrupt according to its individual mask setting. Bit6: IEGF0: General Purpose Flag 0. This is a general purpose flag for use under software control. Bit5: ET2: Enable Timer 2 Interrupt. This bit sets the masking of the Timer 2 interrupt. 0: Disable Timer 2 interrupt. 1: Enable interrupt requests generated by the TF2L or TF2H flags. Bit4: ES0: Enable UART0 Interrupt. This bit sets the masking of the UART0 interrupt. 0: Disable UART0 interrupt. 1: Enable UART0 interrupt. Bit3: ET1: Enable Timer 1 Interrupt. This bit sets the masking of the Timer 1 interrupt. 0: Disable all Timer 1 interrupt. 1: Enable interrupt requests generated by the TF1 flag. Bit2: EX1: Enable External Interrupt 1. This bit sets the masking of external interrupt 1. 0: Disable external interrupt 1. 1: Enable interrupt requests generated by the /INT1 input. Bit1: ET0: Enable Timer 0 Interrupt. This bit sets the masking of the Timer 0 interrupt. 0: Disable all Timer 0 interrupt. 1: Enable interrupt requests generated by the TF0 flag. Bit0: EX0: Enable External Interrupt 0. This bit sets the masking of external interrupt 0. 0: Disable external interrupt 0. 1: Enable interrupt requests generated by the /INT0 input. R/W R/W R/W R/W R/W R/W R/W R/W Reset Value EA IEGF0 ET2 ES0 ET1 EX1 ET0 EX0 00000000 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 SFR Address: (bit addressable) 0xA8 |
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