What do these arrows on a pinout represent?

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
6
down vote

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What do these arrows represent?
Is there any way to memorize it easily?



enter image description here






datasheet pinout dma







share|improve this question



















  • 1




    Out of interest, why would you need to memorise them?
    – Steve Melnikoff
    Sep 22 at 13:44






  • 3




    This is precisely what these arrows are here for: to designate signal directions, so you don't need to "memorize" the major pin function.
    – Ale..chenski
    Sep 22 at 16:45










  • @SteveMelnikoff i have a test on microprocessors . i have to draw pin config and architecture of various processors .
    – Mark Henry
    Sep 23 at 5:36










  • Argh; I used to hate stuff like that. The good news is that, in the real world, you can refer to datasheets as often as you like. :-)
    – Steve Melnikoff
    Sep 27 at 11:25














up vote
6
down vote

favorite












What do these arrows represent?
Is there any way to memorize it easily?



enter image description here






datasheet pinout dma







share|improve this question



















  • 1




    Out of interest, why would you need to memorise them?
    – Steve Melnikoff
    Sep 22 at 13:44






  • 3




    This is precisely what these arrows are here for: to designate signal directions, so you don't need to "memorize" the major pin function.
    – Ale..chenski
    Sep 22 at 16:45










  • @SteveMelnikoff i have a test on microprocessors . i have to draw pin config and architecture of various processors .
    – Mark Henry
    Sep 23 at 5:36










  • Argh; I used to hate stuff like that. The good news is that, in the real world, you can refer to datasheets as often as you like. :-)
    – Steve Melnikoff
    Sep 27 at 11:25












up vote
6
down vote

favorite









up vote
6
down vote

favorite











What do these arrows represent?
Is there any way to memorize it easily?



enter image description here






datasheet pinout dma







share|improve this question















What do these arrows represent?
Is there any way to memorize it easily?



enter image description here






datasheet pinout dma




datasheet pinout dma






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Sep 22 at 2:59









Kevin Reid

5,02011633




5,02011633










asked Sep 22 at 2:47









Mark Henry

333




333







  • 1




    Out of interest, why would you need to memorise them?
    – Steve Melnikoff
    Sep 22 at 13:44






  • 3




    This is precisely what these arrows are here for: to designate signal directions, so you don't need to "memorize" the major pin function.
    – Ale..chenski
    Sep 22 at 16:45










  • @SteveMelnikoff i have a test on microprocessors . i have to draw pin config and architecture of various processors .
    – Mark Henry
    Sep 23 at 5:36










  • Argh; I used to hate stuff like that. The good news is that, in the real world, you can refer to datasheets as often as you like. :-)
    – Steve Melnikoff
    Sep 27 at 11:25












  • 1




    Out of interest, why would you need to memorise them?
    – Steve Melnikoff
    Sep 22 at 13:44






  • 3




    This is precisely what these arrows are here for: to designate signal directions, so you don't need to "memorize" the major pin function.
    – Ale..chenski
    Sep 22 at 16:45










  • @SteveMelnikoff i have a test on microprocessors . i have to draw pin config and architecture of various processors .
    – Mark Henry
    Sep 23 at 5:36










  • Argh; I used to hate stuff like that. The good news is that, in the real world, you can refer to datasheets as often as you like. :-)
    – Steve Melnikoff
    Sep 27 at 11:25







1




1




Out of interest, why would you need to memorise them?
– Steve Melnikoff
Sep 22 at 13:44




Out of interest, why would you need to memorise them?
– Steve Melnikoff
Sep 22 at 13:44




3




3




This is precisely what these arrows are here for: to designate signal directions, so you don't need to "memorize" the major pin function.
– Ale..chenski
Sep 22 at 16:45




This is precisely what these arrows are here for: to designate signal directions, so you don't need to "memorize" the major pin function.
– Ale..chenski
Sep 22 at 16:45












@SteveMelnikoff i have a test on microprocessors . i have to draw pin config and architecture of various processors .
– Mark Henry
Sep 23 at 5:36




@SteveMelnikoff i have a test on microprocessors . i have to draw pin config and architecture of various processors .
– Mark Henry
Sep 23 at 5:36












Argh; I used to hate stuff like that. The good news is that, in the real world, you can refer to datasheets as often as you like. :-)
– Steve Melnikoff
Sep 27 at 11:25




Argh; I used to hate stuff like that. The good news is that, in the real world, you can refer to datasheets as often as you like. :-)
– Steve Melnikoff
Sep 27 at 11:25










1 Answer
1






active

oldest

votes

















up vote
16
down vote



accepted










They indicate data direction. Arrows pointing to the chip indicate that those pins are inputs and vice versa. Bidirectional arrows indicate they are either inputs/outputs, depending on the circumstances.



If you want to memorize it, I think you should memorize those pins meanings first.






share|improve this answer






















  • yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
    – Mark Henry
    Sep 22 at 4:16






  • 1




    @MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
    – DoxyLover
    Sep 22 at 5:20










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
16
down vote



accepted










They indicate data direction. Arrows pointing to the chip indicate that those pins are inputs and vice versa. Bidirectional arrows indicate they are either inputs/outputs, depending on the circumstances.



If you want to memorize it, I think you should memorize those pins meanings first.






share|improve this answer






















  • yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
    – Mark Henry
    Sep 22 at 4:16






  • 1




    @MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
    – DoxyLover
    Sep 22 at 5:20














up vote
16
down vote



accepted










They indicate data direction. Arrows pointing to the chip indicate that those pins are inputs and vice versa. Bidirectional arrows indicate they are either inputs/outputs, depending on the circumstances.



If you want to memorize it, I think you should memorize those pins meanings first.






share|improve this answer






















  • yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
    – Mark Henry
    Sep 22 at 4:16






  • 1




    @MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
    – DoxyLover
    Sep 22 at 5:20












up vote
16
down vote



accepted







up vote
16
down vote



accepted






They indicate data direction. Arrows pointing to the chip indicate that those pins are inputs and vice versa. Bidirectional arrows indicate they are either inputs/outputs, depending on the circumstances.



If you want to memorize it, I think you should memorize those pins meanings first.






share|improve this answer














They indicate data direction. Arrows pointing to the chip indicate that those pins are inputs and vice versa. Bidirectional arrows indicate they are either inputs/outputs, depending on the circumstances.



If you want to memorize it, I think you should memorize those pins meanings first.







share|improve this answer














share|improve this answer



share|improve this answer








edited Sep 22 at 7:07

























answered Sep 22 at 2:54









Long Pham

7331416




7331416











  • yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
    – Mark Henry
    Sep 22 at 4:16






  • 1




    @MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
    – DoxyLover
    Sep 22 at 5:20
















  • yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
    – Mark Henry
    Sep 22 at 4:16






  • 1




    @MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
    – DoxyLover
    Sep 22 at 5:20















yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
– Mark Henry
Sep 22 at 4:16




yea i have memorized the pins , the problem is that some pins have 2 arrows and some dont .
– Mark Henry
Sep 22 at 4:16




1




1




@MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
– DoxyLover
Sep 22 at 5:20




@MarkHenry The double arrows represent pins that are bidirectional - may be either input or output, depending on the circumstances.
– DoxyLover
Sep 22 at 5:20

















 

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