Beat Transfer; Normal And Single Transfer - Fujitsu MB86R02 Jade-D Hardware Manual

Graphics controller

Hide thumbs Also See for MB86R02 Jade-D:

Table of Contents

MB86R02 'Jade-D' Hardware Manual V1.64

15.7.2 Beat transfer

The DMAC supports beat transfer corresponding to an increment/lap burst of the AMBA standard.

The DMAC has a 64 byte FIFO shared by all channels and enables sequential source access

and destination access. The beat transfer type is set using the DMACA/BT bits.

The correlation to DMACA/BT and AHB of HBURST is shown below.

Table 15-2 DMACA/BT and HBURST

In demand transfer mode, increment/lap burst (INCR* and WRAP*) are unsupported.

The Normal and Single transfer methods are the same. Single source access and single

destination access are executed alternately as shown in Figure 15-2 and Figure 15-3.

Beat transfer type

DMACA/MS (mode select)