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7721 데이터시트(PDF) 131 Page - Renesas Technology Corp

부품명 7721
상세설명  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  577 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7721 데이터시트(HTML) 131 Page - Renesas Technology Corp

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TIMER A
7721 Group User’s Manual
8–12
8.3 Timer mode
Count starts
Setting count start bit to “1.”
b7
b0
Count start register (Address 4016)
Timer A0 count start bit
Timer A1 count start bit
Timer A2 count start bit
Timer A3 count start bit
Timer A4 count start bit
Setting interrupt priority level
b7
b0
Timer Ai interrupt control register (i = 0 to 4)
(Addresses 7516 to 7916)
Interrupt priority level select bits
When using interrupts, set these bits to one of levels
1 to 7.
When disabling interrupts, set these bits to level 0.
From preceding Figure 8.3.2.
Setting port P5 direction register
b7
b0
Port P5 direction register (Address D16)
TA2IN pin
TA3IN pin
TA4IN pin
When gate function is selected, set the bit corresponding to the TAjIN pin to
“0.”
Fig. 8.3.3 Initial setting example for registers relevant to timer mode (2)



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