USB DEVICE S3C2440A RISC MICROPROCESSOR
13-20
DMA UNIT COUNTER REGISTER (EPN_DMA_UNIT)
This register is valid in Demand mode. In other modes, this register value must be set to ‘0x01’
Register Address R/W Description Reset Value
EP1_DMA_UNIT 0x52000204(L)
0x52000207(B)
R/W
(byte)
EP1 DMA transfer unit counter base register 0x00
EP2_DMA_UNIT 0x5200021C(L)
0x5200021F(B)
R/W
(byte)
EP2 DMA transfer unit counter base register 0x00
EP3_DMA_UNIT 0x52000244(L)
0x52000247(B)
R/W
(byte)
EP3 DMA transfer unit counter base register 0x00
EP4_DMA_UNIT 0x5200025C(L)
0x5200025F(B)
R/W
(byte)
EP4 DMA transfer unit counter base register 0x00
DMA_UNIT Bit MCU USB Description Initial State
EPn_UNIT_CNT [7:0] R/W R EP DMA transfer unit counter value 0x00