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3803 датащи(PDF) 29 Page - Renesas Technology Corp

номер детали 3803
подробное описание детали  SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PDF  119 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

3803 датащи(HTML) 29 Page - Renesas Technology Corp

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Rev.1.00
Apr 2, 2007
Page 29 of 117
REJ03B0212-0100
3803 Group (Spec.L)
Fig 24. Timing of interrupt request generation, interrupt request bit, and interrupt acceptance
T1
(1) The interrupt request bit for an interrupt request generated during period 1 is set to “1” at timing point IR1.
(2) The interrupt request bit for an interrupt request generated during period 2 is set to “1” at timing point IR1 or IR2.
The timing point at which the bit is set to “1” varies depending on conditions. When two or more interrupt
requests are generated during the period 2, each request bit may be set to “1” at timing point IR1 or IR2
separately.
T1 T2 T3 : Interrupt acceptance timing points
IR1 IR2 : Timings points at which the interrupt request bit is set to “1”.
Note : Period 2 indicates the last
φ cycle during one instruction cycle.
IR1 T2
SYNC
IR2 T3
12
Internal clock
φ
Instruction cycle
Push onto stack
Vector fetch
Instruction cycle



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