参数资料
型号: SN8P1703A
厂商: SONIX Technology Co., Ltd.
英文描述: 8-Bit Micro-Controller
中文描述: 8位微控制器
文件页数: 83/112页
文件大小: 634K
代理商: SN8P1703A
Preliminary SN8P1702A/SN8P1703A
8-bit micro-controller build-in 12-bit ADC
SONiX TECHNOLOGY CO., LTD
Page 83
Revision 0.5
TC0 INTERRUPT OPERATION
When the TC0C counter occurs overflow, the TC0IRQ will be set to “1” however the TC0IEN is enable or disable. If the
TC0IEN = 1, the trigger event will make the TC0IRQ to be “1” and the system enter interrupt vector. If the TC0IEN = 0,
the trigger event will make the TC0IRQ to be “1” but the system will not enter interrupt vector. Users need to care for
the operation under multi-interrupt situation.
Example: TC0 interrupt request setup.
B0BCLR
FTC0IEN
; Disable TC0 interrupt service
B0BCLR
FTC0ENB
; Disable TC0 timer
MOV
A, #20H
;
B0MOV
TC0M, A
; Set TC0 clock = Fcpu / 64
MOV
A, #74H
; Set TC0C initial value = 74H
B0MOV
TC0C, A
; Set TC0 interval = 10 ms
B0BSET
FTC0IEN
; Enable TC0 interrupt service
B0BCLR
FTC0IRQ
; Clear TC0 interrupt request flag
B0BSET
FTC0ENB
; Enable TC0 timer
B0BSET
FGIE
; Enable GIE
Example: TC0 interrupt service routine.
ORG
8
; Interrupt vector
JMP
INT_SERVICE
INT_SERVICE:
B0XCH
A, ACCBUF
; Store ACC value.
B0MOV
A, PFLAG
B0MOV
PFLAGBUF, A
B0BTS1
FTC0IRQ
; Check TC0IRQ
JMP
EXIT_INT
; TC0IRQ = 0, exit interrupt vector
B0BCLR
FTC0IRQ
; Reset TC0IRQ
MOV
A, #74H
B0MOV
TC0C, A
; Reset TC0C.
.
.
; TC0 interrupt service routine
.
.
EXIT_INT:
B0MOV
A, PFLAGBUF
B0MOV
PFLAG, A
B0XCH
A, ACCBUF
; Restore ACC value.
RETI
; Exit interrupt vector
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