C511 datasheet(92/128 Pages) SIEMENS

92 / 128 page

Interrupt System

Semiconductor Group

7-5

7.2.2 Interrupt Priorities

Each interrupt source can also be individually programmed to one of two priority levels by setting or

clearing a bit in the SFR IP (Interrupt Priority, 0: low priority, 1: high priority).

Special Function Registers IP (Address B8H)

Reset Value : X0000000B

Bit

Function

–

Not implemented, reserved for future use. Will be read as “1“.

PSSC

SSC Priority Level

If PSSC = 0, the SSC interrupt has a low priority.

PT2

Timer 2 Interrupt Priority Level.

If PT2 = 0, the timer 2 interrupt has a low priority.

Serial Channel (USART) Interrupt Priority Level

(C513//C513A/C513A-H only)

If PS = 0, the serial channel interrupt has a low priority.

PT1

Timer 1 Overflow Interrupt Priority Level.

If PT1 = 0, the timer 1 interrupt has a low priority.

PX1

External Interrupt 1 Priority Level.

If PX1 = 0, the external interrupt 1 has a low priority.

PT0

Timer 0 Overflow Interrupt Priority Level.

If PT0 = 0, the timer 0 interrupt has a low priority.

PX0

External Interrupt 0 Priority Level.

If PX0 = 0, the external interrupt 0 has a low priority.

–

PSSC

PT2

B8H

Bit No.

MSB

LSB

PT1

PX1

PT0

PX0

C511 Datasheet(PDF) 92 Page - Siemens Semiconductor Group

C511 Datasheet(HTML) 92 Page - Siemens Semiconductor Group

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL