Datasheet

Rev. 2.00 Aug. 20, 2008 Page xxxvii of xlviii
Section 21 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Figure 21.1 Configuration of E-DMAC, and Descriptors and Buffers...................................... 794
Figure 21.2 Relationship between Transmit Descriptor and Transmit Buffer........................... 818
Figure 21.3 Relationship between Receive Descriptor and Receive Buffer.............................. 822
Figure 21.4 Sample Transmission Flowchart ............................................................................ 828
Figure 21.5 Sample Reception Flowchart.................................................................................. 830
Figure 21.6 E-DMAC Operation after Transmit Error .............................................................. 831
Figure 21.7 E-DMAC Operation after Receive Error................................................................ 832
Section 22 USB Function Module (USB)
Figure 22.1 Block Diagram of USB .......................................................................................... 834
Figure 22.2 Operation at Cable Connection .............................................................................. 865
Figure 22.3 Operation at Cable Disconnection.......................................................................... 866
Figure 22.4 Suspend Operation .................................................................................................867
Figure 22.5 Resume Operation from Up-Stream....................................................................... 868
Figure 22.6 Flow of Transition to and Canceling Software Standby Mode .............................. 869
Figure 22.7 Timing of Transition to and Canceling Software Standby Mode........................... 870
Figure 22.8 Remote-Wakeup..................................................................................................... 871
Figure 22.9 Transfer Stages in Control Transfer ....................................................................... 872
Figure 22.10 Setup Stage Operation.......................................................................................... 873
Figure 22.11 Data Stage (Control-In) Operation ....................................................................... 874
Figure 22.12 Data Stage (Control-Out) Operation .................................................................... 875
Figure 22.13 Status Stage (Control-In) Operation..................................................................... 876
Figure 22.14 Status Stage (Control-Out) Operation .................................................................. 877
Figure 22.15 EP1 Bulk-Out Transfer Operation........................................................................ 878
Figure 22.16 EP2 Bulk-In Transfer Operation .......................................................................... 879
Figure 22.17 Operation of EP3 Interrupt-In Transfer................................................................ 881
Figure 22.18 Forcible Stall by Application ...............................................................................884
Figure 22.19 Automatic Stall by USB Function Module...........................................................885
Figure 22.20 RDFN Bit Operation for EP1 ............................................................................... 887
Figure 22.21 PKTE Bit Operation for EP2................................................................................ 888
Figure 22.22 Example of Circuitry in Self-Powered Mode....................................................... 891
Figure 22.23 TR Interrupt Flag Set Timing............................................................................... 893
Section 23 A/D Converter
Figure 23.1 Block Diagram of the A/D Converter ....................................................................896
Figure 23.2 Example of A/D Converter Operation (When Channel 1 is
Selected in Single Mode) ....................................................................................... 903
Figure 23.3 Example of A/D Converter Operation (When Channels AN0 to AN3 are
Selected in Scan Mode).......................................................................................... 904
Figure 23.4 A/D Conversion Timing......................................................................................... 906