cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 7

• Manufacturer Part Number: cx82100
• Description: Home Network Processor Hnp
• Manufacturer: Conexant Systems, Inc.

101306C
8.3
8.4
8.5
8.6
8.7
8.8
8.9
UDC Core ....................................................................................................................................................................8-6
8.3.1
8.3.2
8.3.3
8.3.4
USB DMA Interface ...................................................................................................................................................8-10
8.4.1
8.4.2
Interrupt Endpoint .....................................................................................................................................................8-14
Summary of the Endpoints ........................................................................................................................................8-14
USB Register Memory Map .......................................................................................................................................8-15
USB Registers ...........................................................................................................................................................8-16
8.8.1
8.8.2
8.8.3
8.8.4
8.8.5
8.8.6
8.8.7
8.8.8
8.8.9
8.8.10
8.8.11
8.8.12
8.8.13
8.8.14
8.8.15
8.8.16
USB DMA Control Registers ......................................................................................................................................8-30
8.9.1
8.9.2
8.9.3
8.9.4
8.9.5
8.9.6
8.9.7
8.9.8
8.9.9
8.9.10
8.9.11
8.9.12
8.9.13
8.9.14
8.9.15
8.9.16
8.9.17
8.9.18
8.9.19
8.9.20
Endpoint Buffer Format................................................................................................................................8-6
Example of Endpoint Buffer Encoding..........................................................................................................8-7
Loading of the EndPtBuf Configurations ......................................................................................................8-8
USB Command Handling .............................................................................................................................8-9
DMA Receive Channel................................................................................................................................8-10
DMA Transmit Channel..............................................................................................................................8-12
USB Source/Destination DMA Data Register 0 (U0_DMA: 0x00330000)....................................................8-16
USB Source/Destination DMA Data Register 1 (U1_DMA: 0x00330008)....................................................8-16
USB Source/Destination DMA Data Register 2 (U2_DMA: 0x00330010)....................................................8-16
USB Source/Destination DMA Data Register 3 (U3_DMA: 0x00330018)....................................................8-16
USB Destination DMA Data Register (UT_DMA: 0x00330020)...................................................................8-17
USB Configuration Data Register (U_CFG: 0x00330024) ...........................................................................8-17
USB Interrupt Data Register (U_IDAT: 0x00330028) .................................................................................8-17
USB Control Register 1 (U_CTR1: 0x0033002C) .......................................................................................8-18
USB Control Register 2 (U_CTR2: 0x00330030)........................................................................................8-20
USB Control Register 3 (U_CTR3: 0x00330034)........................................................................................8-21
USB Status (U_STAT: 0x00330038) ..........................................................................................................8-22
USB Interrupt Enable Register (U_IER: 0x0033003C) ................................................................................8-25
USB Status Register 2 (U_STAT2: 0x00330040) .......................................................................................8-26
USB Interrupt Enable Register 2 (U_IER2: 0x00330044) ...........................................................................8-28
UDC Time Stamp Register (UDC_TSR: 0x0033008C) ................................................................................8-29
UDC Status Register (UDC_STAT: 0x00330090)........................................................................................8-29
EP0_IN Transmit Increment Register (EP0_IN_TX_INC: 0x00330048) ......................................................8-30
EP0_IN Transmit Pending Register (EP0_IN_TX_PEND: 0x0033004C)......................................................8-30
EP0_IN Transmit qword Count Register (EP0_IN_TX_QWCNT: 0x00330050) ...........................................8-30
EP1_IN Transmit Increment Register (EP1_IN_TX_INC: 0x00330054) ......................................................8-30
EP1_IN Transmit Pending Register (EP1_IN_TX_PEND: 0x00330058)......................................................8-31
EP1_IN Transmit qword Count Register (EP1_IN_TX_QWCNT).................................................................8-31
EP2_IN Transmit Increment Register (EP2_IN_TX_INC: 0x00330060) ......................................................8-31
EP2_IN Transmit Pending Register (EP2_IN_TX_PEND: 0x00330064)......................................................8-31
EP2_IN Transmit qword Count Register (EP2_IN_TX_QWCNT).................................................................8-32
EP3_IN Transmit Increment Register (EP1_IN_TX_INC: 0x0033006C)......................................................8-32
EP3_IN Transmit Pending Register (EP3_IN_TX_PEND: 0x00330070)......................................................8-32
EP3_IN Transmit qword Count Register (EP3_IN_TX_QWCNT: 0x00330074) ...........................................8-32
EP_OUT Receive Decrement Register (EP_OUT_RX_DEC: 0x00330078)...................................................8-33
EP_OUT Receive Pending Register (EP_OUT_RX_PEND: 0x0033007C) ....................................................8-33
EP_OUT Receive Buffer Size Register (EP_OUT_RX_BUFSIZE: 0x00330084)............................................8-33
EP_OUT Receive qword Count Register (EP_OUT_RX_QWCNT: 0x00330080)..........................................8-33
USB Receive DMA Watchdog Timer Register (USB_RXTIMER: 0x00330094)............................................8-34
USB Receive DMA Watchdog Timer Counter Register (USB_RXTIMERCNT: 0x00330098)........................8-34
EP_OUT Receive Pending Interrupt Level Register (EP_OUT_RX_PENDLEVEL: 0x0033009C)...................8-34
USB Control-Status Register (U_CSR: 0x00330088) .................................................................................8-35
Conexant Proprietary and Confidential Information
CX82100 Home Network Processor Data Sheet
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