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JuIn_1625121
Level 5
Level 5
100 sign-ins First solution authored 100 replies posted

Hi,

At first, 16-bit data is transfered from 16-bit transmit data buffer on the RAM to TDR by using DMAC. Transfer width is 16-bit.

Next, 8-bit data is transfered from 8-bit transmit data buffer on the RAM to TDR by uing DMAC. Transfer width is 8-bit.

In this case, what values are in 8-bit high register(especially, D8)?

The customer assumes three answers.

a)0
b)Indefinite value
c)datas written at first.

d)others

Best Regards,

Inoue

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1 Solution
AchimE_41
Employee
Employee
10 sign-ins 5 sign-ins First comment on KBA

Hi,

Please see the other thread, register access is only allowed as 16 or 32bit valueFor UART, can DMACB Transfer width be used both 16bit and 8bit ?

So both will be written at the same time.

regards,

Achim

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1 Reply
AchimE_41
Employee
Employee
10 sign-ins 5 sign-ins First comment on KBA

Hi,

Please see the other thread, register access is only allowed as 16 or 32bit valueFor UART, can DMACB Transfer width be used both 16bit and 8bit ?

So both will be written at the same time.

regards,

Achim

0 Likes