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SH7041A bảng dữ liệu(PDF) 151 Page - Renesas Technology Corp

tên linh kiện SH7041A
Giải thích chi tiết về linh kiện  Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)
PDF  923 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7041A bảng dữ liệu(HTML) 151 Page - Renesas Technology Corp

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113
No
Yes
NMI?
No
Yes
User break?
No
Yes
Level 15
interrupt?
No
Yes
I3 to I0
≤
level 14?
No
Yes
Level 14
interrupt?
No
Yes
Yes
I3 to I0
≤
level 13?
No
Yes
Level 1
interrupt?
No
Yes
I3 to I0 =
level 0?
No
Program
execution state
IRQOUT = low level*1
Save SR to stack
Save PC to stack
IRQOUT = high level*2
Branches to exception
service routine
I3 to I0: Interrupt mask bits of status register
Interrupt?
Copy accept-interrupt
level to I3 to I0
Reads exception
vector table
Notes: *1
*2
IRQOUT is the same signal as the interrupt request signal to the CPU (see
figure 6.1). Thus, it is output when there is a higher priority interrupt request
than the one in the I3 to I0 bits of the SR.
When the accepted interrupt is sensed by edge, the
IRQOUT pin becomes
high level at the point when the CPU starts interrupt exception processing
instead of instruction execution (before SR is saved to the stack).
If the interrupt controller has accepted another interrupt with a higher priority
and has output an interrupt request to the CPU, the
IRQOUT pin will remain
low level.
Figure 6.3 Interrupt Sequence Flowchart



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