r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 356
r8a77850anbg
Manufacturer Part Number
r8a77850anbg
Description
Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R8A77850ANBG.pdf
(1692 pages)
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10. Interrupt Controller (INTC)
Table 10.12 IRL Interrupt Pins (IRL[3:0], IRL[7:4]) and Interrupt Levels
IRL interrupt detection requires an on-chip noise-cancellation feature. This detection is performed
when the level sampled at every bus clock is the same for three consecutive cycles. This detection
can prevent the incorrect level from being taking in when the IRL interrupt pin state changes.
Rev.1.00 Jan. 10, 2008 Page 326 of 1658
REJ09B0261-0100
IRL3 or
IRL7
Low
Low
Low
Low
Low
Low
Low
Low
High
High
High
High
High
High
High
High
IRL2 or
IRL6
Low
Low
Low
Low
High
High
High
High
Low
Low
Low
Low
High
High
High
High
Interrupt
requests
Interrupt
requests
Figure 10.3 Example of IRL Interrupt Connection
IRL1 or
IRL5
Low
Low
High
High
Low
Low
High
High
Low
Low
High
High
Low
Low
High
High
IRL0 or
IRL4
Low
High
Low
High
Low
High
Low
High
Low
High
Low
High
Low
High
Low
High
Priority
encoder
Priority
encoder
IRL3 to IRL0
IRL7 to IRL4
Interrupt
Priority Level
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
IRQ/IRL3 to
IRQ/IRL7 to
IRQ/IRL0
IRQ/IRL4
SH7785
Interrupt Request
Level 15 interrupt request
Level 14 interrupt request
Level 13 interrupt request
Level 12 interrupt request
Level 11 interrupt request
Level 10 interrupt request
Level 9 interrupt request
Level 8 interrupt request
Level 7 interrupt request
Level 6 interrupt request
Level 5 interrupt request
Level 4 interrupt request
Level 3 interrupt request
Level 2 interrupt request
Level 1 interrupt request
No interrupt request
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