71M6541DSLASHFSLASHG datasheet(46/166 Pages) MAXIM

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71M6541D/F/G and 71M6542F/G Data Sheet

Rev 5

Table 36: Interrupt Priority Registers (IP0 and IP1)

Address

Bit 7

(MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

(LSB)

IP0

SFR 0xA9

–

IP0[5]

IP0[4]

IP0[3]

IP0[2]

IP0[1]

IP0[0]

IP1

SFR 0xB9

–

IP1[5]

IP1[4]

IP1[3]

IP1[2]

IP1[1]

IP1[0]

Table 37: Interrupt Polling Sequence

External interrupt 0

Serial channel 1 interrupt

Timer 0 interrupt

External interrupt 2

External interrupt 1

External interrupt 3

Timer 1 interrupt

External interrupt 4

Serial channel 0 interrupt

External interrupt 5

External interrupt 6

Interrupt Sources and Vectors

Table 38 shows the interrupts with their associated flags and vector addresses.

Table 38: Interrupt Vectors

Interrupt

Request Flag

Description

Interrupt Vector

Address

IE0

External interrupt 0

0x0003

TF0

Timer 0 interrupt

0x000B

IE1

External interrupt 1

0x0013

TF1

Timer 1 interrupt

0x001B

RI0/TI0

Serial channel 0 interrupt

0x0023

RI1/TI1

Serial channel 1 interrupt

0x0083

IEX2

External interrupt 2

0x004B

IEX3

External interrupt 3

0x0053

IEX4

External interrupt 4

0x005B

IEX5

External interrupt 5

0x0063

IEX6

External interrupt 6

0x006B

71M6541D/F/G Datasheet(PDF) 46 Page - Maxim Integrated Products

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