參數(shù)資料
型號: COP8SAC7SLB9
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS ROM Based and One-Time Programmable OTP Microcontroller with 1k to 4k Memory, Power On Reset, and Very Small Packaging
中文描述: 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, QCC28
封裝: CSP-28
文件頁數(shù): 32/60頁
文件大?。?/td> 787K
代理商: COP8SAC7SLB9
9.0 Interrupts
(Continued)
Programming Example: External Interrupt
PSW
CNTRL
RBIT
RBIT
SBIT
SBIT
SBIT
WAIT:
JP
.
.
.
.=0FF
VIS
=00EF
=00EE
0,PORTGC
0,PORTGD
IEDG, CNTRL
GIE, PSW
EXEN, PSW
WAIT
; G0 pin configured Hi-Z
; Ext interrupt polarity; falling edge
; Set the GIE bit
; Enable the external interrupt
; Wait for external interrupt
; The interrupt causes a
; branch to address 0FF
;The VIS causes a branch to
;interrupt vector table
.
.
.
.=01FA
.ADDRW SERVICE
; Vector table (within 256 byte
; of VIS inst.) containing the ext
;interrupt service routine
.
.
.
SERVICE:
; Interrupt Service Routine
; Reset ext interrupt pend. bit
RBIT, EXPND, PSW
.
.
.
RET
; Return, set the GIE bit
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