Rainbow-electronics AT89LP214 Manual do Utilizador descarregar pdf (Página 21)

3538A–MICRO–7/06

AT89LP213/214 [Preliminary]

Table 12-2. IE – Interrupt Enable Register

IE = A8H Reset Value = 0000 0000B

Bit Addressable

EA EC EGP ES ET1 EX1 ET0 EX0

Bit76543210

Symbol Function

EA Global enable/disable. All interrupts are disabled when EA = 0. When EA = 1, each interrupt source is enabled/disabled

by setting /clearing its own enable bit.

EC Comparator Interrupt Enable

EGP General-purpose Interrupt Enable

ES Serial Port Interrupt Enable

ET1 Timer 1 Interrupt Enable

EX1 External Interrupt 1 Enable

ET0 Timer 0 Interrupt Enable

EX0 External Interrupt 0 Enable

Table 12-3. IP – Interrupt Priority Register

IP = B8H Reset Value = X000 0000B

Bit Addressable

–

PGP PS PT1 PX1 PT0 PX0

Bit76543210

Symbol Function

PGP General-purpose Interrupt Priority Low

PS Serial Port Interrupt Priority Low

PT1 Timer 1 Interrupt Priority Low

PX1 External Interrupt 1 Priority Low

PT0 Timer 0 Interrupt Priority Low

PX0 External Interrupt 0 Priority Low

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