S3C2440A RISC MICROPROCESSOR DMA
8-11
DMA CONTROL (DCON) REGISTER (Continued)
DCONn Bit Description Initial State
DSZ [21:20] Data size to be transferred.
00 = Byte 01 = Half word
10 = Word 11 = reserved
00
TC [19:0] Initial transfer count (or transfer beat).
Note that the actual number of bytes that are transferred is
computed by the following equation: DSZ x TSZ x TC. Where, DSZ,
TSZ (1 or 4), and TC represent data size DCONn[21:20], transfer
size DCONn[28], and initial transfer count, respectively. This value
will be loaded into CURR_TC only if the CURR_TC is 0 and the
DMA ACK is 1.
00000
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