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SH7721 Datasheet(PDF) 339 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 339 Page - Renesas Technology Corp

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Section 8
Interrupt Controller (INTC)
Rev. 3.00 Jan. 18, 2008 Page 277 of 1458
REJ09B0033-0300
I3 to I0: Interrupt mask bits in status register (SR)
Program
execution state
Interrupt
generated?
SR.BL=0,
sleep mode,
or standby mode?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
NMI?
Level 15
interrupt?
Set interrupt source in
INTEVT and INTEVT2
Save SR to SSR;
save PC to SPC
Set BL, MD, and RB
bits in SR to 1
Branch to exception
handler
I3 to I0 levels are
14 or lower?
Level 14
interrupt?
I3 to I0 levels are
13 or lower?
Level 1
interrupt?
I3 to I0 levels are 0?
Figure 8.3
Interrupt Operation Flowchart



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