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MPC2F35L Datasheet(PDF) 8 Page - Megawin Technology Co., Ltd

Part # MPC2F35L
Description  Low-speed USB micro-controller
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Manufacturer  MEGAWIN [Megawin Technology Co., Ltd]
Direct Link  http://www.megawin.com.tw/megawin_EN/Index.asp
Logo MEGAWIN - Megawin Technology Co., Ltd

MPC2F35L Datasheet(HTML) 8 Page - Megawin Technology Co., Ltd

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MPC2F35_USB Data Sheet
MEGAWIN
Interrupt Vectors
Vector Address
Item
Priority
Properties
Description
8002H, 8003H
RESET
1
External.
Initial reset
8006H, 8007H
USB
2
Internal
USB interrupt
8008H, 8009H
TM0
3
Internal
Timer 0 overflow interrupt
800AH, 800BH
P3
4
External.
Port 3 interrupt vector
800CH, 800DH
INT0
5
External.
INT0 external interrupt vector
800EH, 800FH
INT1
6
External.
INT1 external interrupt vector
There are six interrupt sources provided in MPC2F35. The flag IRQ_EN and IRQ_ST are used to
control the interrupts. When flag IRQ_ST is set to ‘1’ by the hardware and the corresponding bits of flag
IRQ_EN has been set by firmware, an interrupt is generated. When an interrupt occurs, all interrupts
are inhibited until the CLI or STA IRQ_EN, #I instruction is invoked. Executing the SEI instruction can
also disable the interrupts.
Interrupt
Process
Logic
IRQ_EN.1
Interrupt
Vector
Generator
Logic
Initial Reset
STA IRQ_EN, #I
Enable
IRQ_ST.1
Initial Reset
STA IRQ_CLR, #I
SEI instruction
Disable
USB
Interrupt signal
IRQ_EN.2
S
R
Q
S
R
Q
IRQ_ST.2
IRQ_ST.5
IRQ_EN.5
S
R
Q
.
.
.
CLI instruction
8002H, 8003H
8006H, 8007H
8008H, 8009H
800AH, 800BH
800CH, 800DH
800EH, 800FH
INT1
Trigger signal
TM0
Interrupt signal


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