Maxim-integrated MAXQ622 Manual do Utilizador descarregar pdf (Página 112)

MAXQ612/MAXQ622 User’s Guide

6-10 Maxim Integrated

6.2 External Interrupt Register Descriptions

Each bit in this register is set when a negative edge or a positive edge (depending on the ITn bit setting) is detected

on the corresponding interrupt pin. Once an external interrupt has been detected, the interrupt flag bit will remain

set until cleared by software or a reset. Setting any of these bits causes the corresponding interrupt to trigger if it is

enabled to do so.

Bit 7: External Interrupt 7 Edge Detect (IE7)

Bit 6: External Interrupt 6 Edge Detect (IE6)

Bit 5: External Interrupt 5 Edge Detect (IE5)

Bit 4: External Interrupt 4 Edge Detect (IE4)

Bit 3: External Interrupt 3 Edge Detect (IE3)

Bit 2: External Interrupt 2 Edge Detect (IE2)

Bit 1: External Interrupt 1 Edge Detect (IE1)

Bit 0: External Interrupt 0 Edge Detect (IE0)

Each bit in this register is set when a negative edge or a positive edge (depending on the ITn bit setting) is detected

on the corresponding interrupt pin. Once an external interrupt has been detected, the interrupt flag bit remains set until

cleared by software or a reset. Setting any of these bits causes the corresponding interrupt to trigger if it is enabled

to do so.

Bit 7: External Interrupt 15 Edge Detect (IE15)

Bit 6: External Interrupt 14 Edge Detect (IE14)

Bit 5: External Interrupt 13 Edge Detect (IE13)

Bit 4: External Interrupt 12 Edge Detect (IE12)

Bit 3: External Interrupt 11 Edge Detect (IE11)

Bit 2: External Interrupt 10 Edge Detect (IE10)

Bit 1: External Interrupt 9 Edge Detect (IE9)

Bit 0: External Interrupt 8 Edge Detect (IE8)

EIF1

External Interrupt Flag 1 Register

M0[07h]

Bit # 7 6 5 4 3 2 1 0

Name IE15 IE14 IE13 IE12 IE11 IE10 IE9 IE8

Reset 0 0 0 0 0 0 0 0

Access rw rw rw rw rw rw rw rw

EIF0

External Interrupt Flag 0 Register

M0[06h]

Bit # 7 6 5 4 3 2 1 0

Name IE7 IE6 IE5 IE4 IE3 IE2 IE1 IE0

Reset 0 0 0 0 0 0 0 0

Access rw rw rw rw rw rw rw rw

1 2 ... 107 108 109 110 111 112 113 114 115 116 117 ... 254 255

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Maxim-integrated MAXQ622 Manual do Utilizador Página 112