PIC18F97J60_11 Datasheet, PDF (224/492 Pages) Microchip Technology – 64/80/100-Pin, High-Performance, 1-Mbit Flash Microcontrollers with Ethernet

PIC18F97J60 FAMILY
FIGURE 19-5:
ETHERNET BUFFER ORGANIZATION
Transmit Buffer Start
(ETXSTH:ETXSTL)
Buffer Write Pointer
(EWRPTH:EWRPTL)
Transmit Buffer End
(ETXNDH:ETXNDL)
Receive Buffer Start
(ERXSTH:ERXSTL)
0000h
AAh
Transmit
Buffer
Write Buffer Data
(data AAh moved to EDATA)
Receive
Buffer
(Circular FIFO)
Buffer Read Pointer
(ERDPTH:ERDPTL)
55h
Read Buffer Data
(data 55h moved out of EDATA)
Receive Buffer End
(ERXNDH:ERXNDL)
1FFFh
DS39762F-page 224
 2011 Microchip Technology Inc.