Difference between revisions of "Datagear DMA Port"

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(add info)
(core 3.1.3 changes/refresh)
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|PortMask=---- ---- 0110 1011
 
|PortMask=---- ---- 0110 1011
 
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}}
Be aware the [[DMA|zxnDMA]] is by default in the new "zxnDMA" mode, acting slightly differently than original Zilog DMA.
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since core 3.1.2 this port $6B is always in "zxnDMA" mode, for "Zilog DMA" use {{PortNo|$xx0B}}.
  
Use {{NextRegNo|$06}} to enable the "Zilog DMA" mode in case your SW expects Zilog-like behaviour of DMA transfers.
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<del>Be aware the [[DMA|zxnDMA]] is by default in the new "zxnDMA" mode, acting slightly differently than original Zilog DMA.</del>
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 +
<del>Use {{NextRegNo|$06}} to enable the "Zilog DMA" mode in case your SW expects Zilog-like behaviour of DMA transfers.</del>

Revision as of 08:05, 30 March 2020

Number $xx6B
Decimal
Short desc. Controls Z8410 DMA chip via Datagear standard.
Bit Mask ---- ---- 0110 1011
Readable Yes
Writable Yes
Subsystem DMA

since core 3.1.2 this port $6B is always in "zxnDMA" mode, for "Zilog DMA" use MB02 DMA Port ($xx0B / 11).

Be aware the zxnDMA is by default in the new "zxnDMA" mode, acting slightly differently than original Zilog DMA.

Use Peripheral 2 Register ($06) to enable the "Zilog DMA" mode in case your SW expects Zilog-like behaviour of DMA transfers.