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7721 Datasheet(PDF) 144 Page - Renesas Technology Corp

Part # 7721
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  577 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7721 Datasheet(HTML) 144 Page - Renesas Technology Corp

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7721 Group User’s Manual
8–25
8.4 Event counter mode
8.4.4 Selectable functions
The following describes the selectable pulse output, and two-phase pulse signal processing functions.
(1)
Pulse output function
The pulse output function is selected by setting the pulse output function select bit (bit 2 at addresses
5816 to 5A16) to “1.” When this function is selected, the TAjOUT pin is forcibly set for the pulse output
pin regardless of the corresponding bit of the port P5 direction register. The TAjOUT pin outputs pulses
of which polarity is inverted each time a counter underflow or overflow occurs. (Refer to “Figure
8.3.6.”)
When the count start bit (address 4016) is “0” (count stopped), the TAjOUT pin outputs “L” level.



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