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SN8F27E64LKB Datasheet(PDF) 71 Page - SONiX Technology Company

Part # SN8F27E64LKB
Description  8-Bit Flash Micro-Controller with Embedded ICE and ISP
PDF  192 Pages
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Manufacturer  SONIX [SONiX Technology Company]
Direct Link  http://www.sonix.com.tw
Logo SONIX - SONiX Technology Company

SN8F27E64LKB Datasheet(HTML) 71 Page - SONiX Technology Company

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SN8F27E60 Series
8-Bit Flash Micro-Controller with Embedded ICE and ISP
SONiX TECHNOLOGY CO., LTD
Page 71
Version 1.4
6.8 TC0 INTERRUPT OPERATION
When the TC0C counter overflows, the TC0IRQ will be set to “1” no matter the TC0IEN is enable or disable. If the
TC0IEN and the trigger event TC0IRQ is set to b
e “1”. As the result, the system will execute the interrupt vector. If the
TC0IEN = 0, the trigger event TC0IRQ is still set to be “1”. Moreover, the system won’t execute interrupt vector even
when the TC0IEN is set to be “1”. Users need to be cautious with the operation under multi-interrupt situation.
Example: TC0 interrupt request setup.
B0BCLR
FTC0IEN
; Disable TC0 interrupt service
B0BCLR
FTC0ENB
; Disable TC0 timer
MOV
A, #10H
;
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
0CH
; Interrupt vector
JMP
INT_SERVICE
INT_SERVICE:
…
; Push routine to save ACC and PFLAG to buffers.
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:
…
; Pop routine to load ACC and PFLAG from buffers.
RETI
; Exit interrupt vector



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