Epson S2R72V18 Technical Manual page 8

1.6.1 FIFO Memory Map ........................................................................................................ 154
1.6.2 Descriptor Area.............................................................................................................. 155
1.6.2.1 Writing Data to Descriptor Area .................................................................................. 155
1.6.2.2 Executing Data Stage (IN) with Descriptor Area ......................................................... 156
1.6.3 CBW Area...................................................................................................................... 156
1.6.3.1 CBW Area (for USB device) ....................................................................................... 156
1.6.3.2 CBW Area (for USB host) ........................................................................................... 156
1.6.4 CSW Area...................................................................................................................... 157
1.6.4.1 CSW Area (for USB device) ....................................................................................... 157
1.6.4.2 CSW Area (for USB host) ........................................................................................... 157
1.6.5 FIFO Access Methods ................................................................................................... 157
1.6.5.1 RAM Access (RAM_Rd) ............................................................................................. 157
1.6.5.2 RAM Access (RAM_WrDoor) ..................................................................................... 158
1.6.5.3 FIFO Access (Register Access).................................................................................. 158
1.6.5.4 FIFO Access (DMA) ................................................................................................... 158
1.6.5.5 FIFO Access Restrictions ........................................................................................... 159
1.7 CPUIF.................................................................................................................................. 160
1.7.1 CPUIF Mode.................................................................................................................. 160
1.7.2 CPUIF Mode Setup ....................................................................................................... 161
1.7.3 Block Configuration ....................................................................................................... 163
1.7.3.1 REG (Registers) ......................................................................................................... 163
1.7.3.1.1 Synchronous Register Access (Write) ................................................................ 163
1.7.3.1.2 Synchronous Register Access (Read) ................................................................ 163
1.7.3.1.3 FIFO Access (Write) ........................................................................................... 164
1.7.3.1.4 FIFO Access (Read) ........................................................................................... 164
1.7.3.1.5 FIFO Access Fractional Number Processing ...................................................... 165
1.7.3.1.6 RAM_Rd Access................................................................................................. 168
1.7.3.1.7 Asynchronous Register Access (Writing) ............................................................ 168
1.7.3.1.8 Asynchronous Register Access (Reading).......................................................... 168
1.7.3.2 DMA0/DMA1(DMA ch.0/ch.1)..................................................................................... 169
1.7.3.2.1 Basic Functions .................................................................................................. 169
1.7.3.2.2 Terminal Setup.................................................................................................... 171
1.7.3.2.3 Count Mode (Write) ............................................................................................ 171
1.7.3.2.4 Count Mode (Read) ............................................................................................ 173
1.7.3.2.5 Free-run Mode (Write) ........................................................................................ 175
1.7.3.2.6 Free-run Mode (Read) ........................................................................................ 175
1.7.3.2.7 REQ Assert Count Option (Write) ....................................................................... 176
1.7.3.2.8 REQ Assert Count Option (Read) ....................................................................... 177
S2R72V18 Technical Manual (Rev.1.00)
EPSON
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