Rainbow Electronics DS3131 - Manual (Page 3)

DS3131
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9.2.4 Done Queue......................................................................................................................................... 87
9.2.5 DMA Configuration RAM ................................................................................................................... 93
9.3 T RANSMIT S IDE ........................................................................................................................................ 97
9.3.1 Overview ............................................................................................................................................. 97
9.3.2 Packet Descriptors ............................................................................................................................ 105
9.3.3 Pending Queue .................................................................................................................................. 107
9.3.4 Done Queue....................................................................................................................................... 111
9.3.5 DMA Configuration RAM ................................................................................................................. 116
10. PCI BUS ........................................................................................................................................ 121
10.1 G ENERAL D ESCRIPTION OF O PERATION ................................................................................................ 121
10.1.1 PCI Read Cycle ................................................................................................................................. 122
10.1.2 PCI Write Cycle ................................................................................................................................ 123
10.1.3 PCI Bus Arbitration .......................................................................................................................... 124
10.1.4 PCI Initiator Abort ............................................................................................................................ 124
10.1.5 PCI Target Retry ............................................................................................................................... 125
10.1.6 PCI Target Disconnect...................................................................................................................... 125
10.1.7 PCI Target Abort............................................................................................................................... 126
10.1.8 PCI Fast Back-to-Back...................................................................................................................... 127
10.2 PCI C ONFIGURATION R EGISTER D ESCRIPTION ..................................................................................... 128
10.2.1 Command Bits ................................................................................................................................... 129
10.2.2 Status Bits.......................................................................................................................................... 130
10.2.3 Command Bits ................................................................................................................................... 134
10.2.4 Status Bits.......................................................................................................................................... 135
11. LOCAL BUS................................................................................................................................. 138
11.1 G ENERAL D ESCRIPTION ......................................................................................................................... 138
11.1.1 PCI Bridge Mode .............................................................................................................................. 141
11.1.2 Configuration Mode .......................................................................................................................... 143
11.2 L OCAL B US B RIDGE M ODE C ONTROL R EGISTER D ESCRIPTION ............................................................ 145
11.3 E XAMPLES OF B US T IMING FOR L OCAL B US PCI B RIDGE M ODE O PERATION ..................................... 147
12. JTAG ............................................................................................................................................. 155
12.1 JTAG D ESCRIPTION ............................................................................................................................... 155
12.2 TAP C ONTROLLER S TATE M ACHINE D ESCRIPTION .............................................................................. 156
12.3 I NSTRUCTION R EGISTER AND I NSTRUCTIONS ........................................................................................ 159
12.4 T EST R EGISTERS .................................................................................................................................... 160
13. AC CHARACTERISTICS .......................................................................................................... 161
14. MECHANICAL DIMENSIONS................................................................................................. 169
14.1 272 PBGA P ACKAGE ............................................................................................................................. 169
15. APPLICATIONS ......................................................................................................................... 170
15.1 T1/E1 AND T3/E3 A PPLICATIONS .......................................................................................................... 170
15.2 DSL AND C ABLE M ODEM A PPLICATIONS ............................................................................................. 173
15.3 S ONET/SDH A PPLICATIONS ................................................................................................................ 174