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MPC8280 Datasheet(PDF) 839 Page - Freescale Semiconductor, Inc

Part # MPC8280
Description  PowerQUICC??II Family Reference Manual
PDF  1386 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MPC8280 Datasheet(HTML) 839 Page - Freescale Semiconductor, Inc

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Universal Serial Bus Controller
MPC8280 PowerQUICC II Family Reference Manual, Rev. 1
Freescale Semiconductor
27-23
The buffers may reside in either external or internal memory.
Figure 27-17. USB Memory Structure
FRAME STATUS
DATA LENGTH
DATA POINTER
USB ENDPOINT 1
DUAL- PORT RAM
EXTERNAL MEMORY
TX BUFFER DESCRIPTORS
TX DATA BUFFER
RX DATA BUFFER
EP1 RX BD
TABLE POINTER
EP1 TX BD
TABLE POINTER
FRAME STATUS
DATA LENGTH
DATA POINTER
TX BUFFER DESCRIPTORS
TX DATA BUFFER
ENDPOINT 4
TX BD TABLE
ENDPOINT 1
TX BD TABLE
ENDPOINT 1
RX BD TABLE
ENDPOINT 4 RX BD
TABLE
EP4 RX BD
TABLE POINTER
EP4 TX BD
TABLE POINTER
FRAME STATUS
DATA LENGTH
DATA POINTER
RX BUFFER DESCRIPTORS
FRAME STATUS
DATA LENGTH
DATA POINTER
RX BUFFER DESCRIPTORS
RX DATA BUFFER



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