Bureaucrats, oversight, Administrators
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no edit summary
| Destination data address. Must be multiple of 4.
| Destination data address. Must be multiple of 4.
|}
|}
Like old DMA, REG_NDMA_DEST is copied to internal registers when written to.
Like old DMA, REG_NDMADAD is copied to internal registers when written to.
== REG_NDMATCNT ==
== REG_NDMATCNT ==
! DESCRIPTION
! DESCRIPTION
|-
|-
| 31-0
| 27-0
| Number of bytes to copy/write, see REG_NDMA_CNT bit28.
| Total number of words transferred.
|}
|}
! DESCRIPTION
! DESCRIPTION
|-
|-
| 31-0
| 23-0
| Number of bytes to copy/write, see REG_NDMA_CNT bit28.
| Total number of words to transfer.
|}
|}
! DESCRIPTION
! DESCRIPTION
|-
|-
| 31-0
| 15-0
| Time related?
| Interval timer.
|-
| 17-16
| Prescaler. 0=System freq, 1=1/4th freq, 2=1/16th freq, 3=1/64th freq.
|}
|}
|-
|-
| 31-0
| 31-0
| Value to write to destination instead of copying when REG_NDMA_CNT bit13 and bit14 are set.
| Fill data.
|}
|}
! DESCRIPTION
! DESCRIPTION
|-
|-
| 10-0
| 11-10
| ?
| Destination address update method.
|-
|-
| 11
| 12
| Fixed destination address when set.
| Destination address reload flag.
|-
|-
| 12
| 14-13
| ?
| Source address update method.
|-
|-
| 13
| 15
| When set clear data with the value REG_NDMA_CLEAR instead of copying.
| Source address reload flag.
|-
|-
| 14
| 19-16
| Fixed source address when set.
| Block transfer word count.
|-
|-
| 27-15
| 27-24
| ?
| Startup mode.
|-
|-
| 28
| 28
| Set when REG_NDMA_NUM0 was set, clear when REG_NDMA_NUM1 was set.
| Immediate mode.
|-
| 29
| Repeating mode.
|-
|-
| 30
| 30
|-
|-
| 31
| 31
| Enable/busy
| Enable/busy flag.
|}
|}