Datasheet

COP8SGE5, COP8SGE7, COP8SGH5

COP8SGK5, COP8SGR5, COP8SGR7

www.ti.com

SNOS516E –JANUARY 2000–REVISED APRIL 2013

Figure 36. VIS Flowchart

Programming Example: External Interrupt

PSW =00EF

CNTRL =00EE

RBIT 0,PORTGC

RBIT 0,PORTGD ; G0 pin configured Hi-Z

SBIT IEDG, CNTRL ; Ext interrupt polarity; falling edge

SBIT EXEN, PSW ; Enable the external interrupt

SBIT GIE, PSW ; Set the GIE bit

WAIT: JP WAIT ; Wait for external interrupt

.=0FF ; The interrupt causes a

VIS ; branch to address 0FF

; The VIS causes a branch to

;interrupt vector table

.=01FA ; Vector table (within 256 byte

.ADDRW SERVICE ; of VIS inst.) containing the ext

; interrupt service routine

INT_EXIT:

RETI

SERVICE: RBIT EXPND, PSW ; Interrupt Service Routine

; Reset ext interrupt pend. bit

Product Folder Links: COP8SGE5 COP8SGE7 COP8SGH5 COP8SGK5 COP8SGR5 COP8SGR7