Category: Datasheet/Specs
Product Number: ADSP-21569
Hi.
1. I can't find the information about EMDMA's word width. I find only that All the DMA addresses given by EMDMA are word-aligned byte addresses (p.28-3).
Am I right that EMDMA's word width is 32-bit?
2. HWR says that The EMDMA_CTL.WRBEN bit enables write back of the EIEP register after reads and or writes (p.28-24). But there are nothing about EIEP register.
I think It's from Legacy Sharc.
3. Functions as PrepareEmdmaTCBXY convert the address to system address space and shift right by 2 bits.
Do Shifting right by 2 bits because All the DMA addresses given by EMDMA are word-aligned byte addresses?
Edit Notes
Changing the subject and add the third question[edited by: daim at 6:18 PM (GMT -5) on 1 Dec 2025]
