Specifications
CORE LOGIC Proprietary and Confidential
119
www.corelogic.co.kr │
DMA Mode
1) Same with Polling 1).
2) Set transfer address of TrAddr_H and TrAddr_L(86h, 84h) in DMA. (C)
3) Same with Polling 2).
4) Same with Polling 3).
5) Same with Polling 4).
6) Same with Polling 5).
7) Same with Polling 6).
8) Same with Polling 7).
9) Same with Polling 8).
10) Same with Polling 9).
11) Same with Polling 10).
12) Same with Polling 11).
13) When 256*16bit buffer is full, DMA requests the memory controller. (D)
14) When DMA receives Ack, DMA starts to transmit the full buffer. (D)
15) When data of TrNum have transmitted, DMA generates an interrupt. (D)
16) Same with Polling 14).
Figure 4-51. SD DMA Mode Read without FAT










