PIC32MX440F256H-80I Datasheet, PDF (287/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
FIGURE 11-5:
BUFFER MANAGEMENT OVERVIEW
U1BDTP1:3
Pointer
BDT
located in RAM*
EP0 RX EVEN Descriptor
EP0 RX ODD Descriptor
EP0 TX EVEN Descriptor
EP0 TX ODD Descriptor
EP1 RX EVEN Descriptor
EP1 RX ODD Descriptor
EP1 TX EVEN Descriptor
EP1 TX ODD Descriptor
EP2 RX EVEN Descriptor
EP2 RX ODD Descriptor
EP2 TX EVEN Descriptor
EP2 TX ODD Descriptor
...
EP15 TX ODD Descriptor
*512 byte aligned
Transfer Buffers
Located in RAM
EP0 RX EVEN Buffer
EP0 RX ODD Buffer
EP0 TX EVEN Buffer
EP0 TX ODD Buffer
EP1 RX EVEN Buffer
EP1 RX ODD Buffer
EP1 TX EVEN Buffer
EP1 TX ODD Buffer
EP2 RX EVEN Buffer
EP2 RX ODD Buffer
EP2 TX EVEN Buffer
EP2 TX ODD Buffer
...
EP15 TX ODD Buffer
© 2008 Microchip Technology Inc.
Preliminary
DS61143E-page 285