Rainbow-electronics T89C51CC01 Manual do Utilizador descarregar pdf (Página 131)

131

T89C51CC01

Rev. D – 17-Dec-01

Table 93. IPL0 Register

IPH0 (B7h)

Interrupt High Priority Register

Reset Value: X000 0000b

76543210

- PPCH PT2H PSH PT1H PX1H PT0H PX0H

Bit

Number

Bit

Mnemonic Description

Reserved

The value read from this bit is indeterminate. Do not set this bit.

6 PPCH

PCA Interrupt Priority level most significant bit

PPCH

PPC Priority level

00Lowest

1 1 Highest priority

5PT2H

Timer 2 overflow interrupt High Priority bit

PT2H

PT2 Priority Level

00Lowest

1 1 Highest

4 PSH

Serial port High Priority bit

PSH

PS Priority Level

00Lowest

1 1 Highest

3PT1H

Timer 1 overflow interrupt High Priority bit

PT1H

PT1 Priority Level

00Lowest

1 1 Highest

2PX1H

External interrupt 1 High Priority bit

PX1H

PX1 Priority Level

00Lowest

1 1 Highest

1PT0H

Timer 0 overflow interrupt High Priority bit

PT0H

PT0 Priority Level

00Lowest

1 1 Highest

0PX0H

External interrupt 0 high priority bit

PX0H

PX0 Priority Level

00Lowest

1 1 Highest

1 2 ... 126 127 128 129 130 131 132 133 134 135 136 ... 148 149

T89C51CC01 1

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