Datagear DMA Port
From SpecNext Wiki
| Number | PortNumber::$xx6B |
|---|---|
| Decimal | NumberDec:: |
| Short desc. | ShortDesc::Controls Z8410 DMA chip via Datagear standard. |
| Bit Mask | PortMask::---- ---- 0110 1011 |
| Readable | Readable::Yes |
| Writable | Writable::Yes |
| Subsystem | Subsystem::DMA |
Be aware the zxnDMA is by default in the new "zxnDMA" mode, acting slightly differently than original Zilog DMA.
Use {{#ask: TBRegisterNumber::$06 }} ($06) to enable the "Zilog DMA" mode in case your SW expects Zilog-like behaviour of DMA transfers.